{"items":[{"id":"NVI-00008978","kind":"vulnerability","title":"Seroval: Script injection through RegExp sources in serialized output","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9wx9-5pv9-3349","CVE-2026-116582"],"plain_summary":"GitHub lists this reviewed advisory for seroval, seroval. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1a251cb759d6603424879f849eb64ea8"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.6.10 for seroval. Confirm the publisher’s latest guidance.","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.0.0 for seroval. Confirm the publisher’s latest guidance.","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-28T21:17:32.000Z","value":"4.7 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5865aed79e3e5861d00f1ef42e45ffea"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.188%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.08412. Missing scores are unknown.","source_id":"sr-1a251cb759d6603424879f849eb64ea8"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5865aed79e3e5861d00f1ef42e45ffea","url":"https://github.com/advisories/GHSA-9wx9-5pv9-3349","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9wx9-5pv9-3349","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-d94bfca7a6fee9f1a9763a6b6b972254","url":"https://github.com/advisories/GHSA-9wx9-5pv9-3349","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-9wx9-5pv9-3349","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-11-01T14:27:42.154Z"},{"id":"sr-1a251cb759d6603424879f849eb64ea8","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-116582","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.267Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5865aed79e3e5861d00f1ef42e45ffea"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":[">= 1.5.5, < 1.6.10"]},{"certainty":"source_listed","source_ids":["sr-5865aed79e3e5861d00f1ef42e45ffea"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":["< 1.0.0"]},{"certainty":"source_listed","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":["SEMVER: introduced 1.5.5; fixed 1.6.10"]},{"certainty":"source_listed","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":["SEMVER: introduced 0; fixed 1.0.0"]}],"null_published_at":"2026-11-04T18:04:03.087Z","source_updated_at":"2026-10-28T21:17:32.000Z","source_disclosed_at":"2026-10-28T21:17:31.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00008978","kind":"vulnerability","title":"Seroval: Script injection through RegExp sources in serialized output","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9wx9-5pv9-3349","CVE-2026-116582"],"plain_summary":"GitHub lists this reviewed advisory for seroval, seroval. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-041d8efe5fcf2edd9ae78e3b9ad2da16"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.6.10 for seroval. Confirm the publisher’s latest guidance.","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 1.0.0 for seroval. Confirm the publisher’s latest guidance.","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-28T21:17:32.000Z","value":"4.7 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5865aed79e3e5861d00f1ef42e45ffea"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.188%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.08414. Missing scores are unknown.","source_id":"sr-041d8efe5fcf2edd9ae78e3b9ad2da16"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5865aed79e3e5861d00f1ef42e45ffea","url":"https://github.com/advisories/GHSA-9wx9-5pv9-3349","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9wx9-5pv9-3349","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-d94bfca7a6fee9f1a9763a6b6b972254","url":"https://github.com/advisories/GHSA-9wx9-5pv9-3349","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-9wx9-5pv9-3349","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-11-01T14:27:42.154Z"},{"id":"sr-041d8efe5fcf2edd9ae78e3b9ad2da16","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-116582","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5865aed79e3e5861d00f1ef42e45ffea"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":[">= 1.5.5, < 1.6.10"]},{"certainty":"source_listed","source_ids":["sr-5865aed79e3e5861d00f1ef42e45ffea"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":["< 1.0.0"]},{"certainty":"source_listed","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":["SEMVER: introduced 1.5.5; fixed 1.6.10"]},{"certainty":"source_listed","source_ids":["sr-d94bfca7a6fee9f1a9763a6b6b972254"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":["SEMVER: introduced 0; fixed 1.0.0"]}],"null_published_at":"2026-11-01T14:34:14.088Z","source_updated_at":"2026-10-28T21:17:32.000Z","source_disclosed_at":"2026-10-28T21:17:31.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00008978","kind":"vulnerability","title":"Seroval: Script injection through RegExp sources in serialized output","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9wx9-5pv9-3349","CVE-2026-116582"],"plain_summary":"GitHub lists this reviewed advisory for seroval, seroval. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-041d8efe5fcf2edd9ae78e3b9ad2da16"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-28T21:17:32.000Z","value":"4.7 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5865aed79e3e5861d00f1ef42e45ffea"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.188%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.08414. Missing scores are unknown.","source_id":"sr-041d8efe5fcf2edd9ae78e3b9ad2da16"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5865aed79e3e5861d00f1ef42e45ffea","url":"https://github.com/advisories/GHSA-9wx9-5pv9-3349","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9wx9-5pv9-3349","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-041d8efe5fcf2edd9ae78e3b9ad2da16","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-116582","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5865aed79e3e5861d00f1ef42e45ffea"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":[">= 1.5.5, < 1.6.10"]},{"certainty":"source_listed","source_ids":["sr-5865aed79e3e5861d00f1ef42e45ffea"],"technology":"seroval","known_exclusions":[],"conditions_summary":"### Summary\n\nseroval writes a `RegExp` as a regular expression literal. In affected versions, the `` element that the serialized output is placed in, and run script in the page.\n\n### Details\n\nseroval escapes `` element. `RegExp` sources did not get the same escaping:\n\n- Versions before 1.0.0 wrote the source as is.\n- Version 1.5.5 stopped escaping `<` in `RegExp` sources, so that named groups and lookbehinds keep working. This removed the escaping for every `<` in a source.\n\nThese functions are affected:\n\n- `serialize`, `serializeAsync`\n- `crossSerialize`, `crossSerializeAsync`, `crossSerializeStream`\n- the `Serializer` class\n- `compileJSON`\n\n`toJSON`, `fromJSON`, `toCrossJSON` and `fromCrossJSON` are not affected, because they never produce JavaScript.\n\n### Impact\n\nAn application is affected when all of these are true:\n\n1. It builds a `RegExp` from untrusted input that is used as regular expression syntax. Input passed through an escaping helper (such as an `escapeRegExp` function) is not enough to e","public_affected_ranges":["< 1.0.0"]}],"null_published_at":"2026-10-31T22:13:44.218Z","source_updated_at":"2026-10-28T21:17:32.000Z","source_disclosed_at":"2026-10-28T21:17:31.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:08.420Z"}],"next_cursor":null,"snapshot_revision":"42594"}