{"items":[{"id":"NVI-00014133","kind":"vulnerability","title":"xmldom: requireWellFormed element/attribute name validation is bypassable via an embedded line terminator","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jxjr-3g7g-3944","CVE-2026-83617"],"plain_summary":"GitHub lists this reviewed advisory for @xmldom/xmldom. 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-091db04aa263881710cddd1c4cc961bc"],"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":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.570%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.47317. Missing scores are unknown.","source_id":"sr-091db04aa263881710cddd1c4cc961bc"}],"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-4e29e8103b4fb349accc160acc3800f1","url":"https://github.com/advisories/GHSA-jxjr-3g7g-3944","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jxjr-3g7g-3944","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T22:54:12.705Z"},{"id":"sr-091db04aa263881710cddd1c4cc961bc","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-2026-83617","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.400Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4e29e8103b4fb349accc160acc3800f1"],"technology":"@xmldom/xmldom","known_exclusions":[],"conditions_summary":"## Summary\n\nAn embedded line terminator bypasses the `requireWellFormed` serializer check for element and\nattribute names. The check was added to fix GHSA-w2rr-34g9-rvrj and GHSA-4w3w-2rp5-g8jm; a name whose\nfirst line is well-formed slips past it and is serialized verbatim, so the characters after the line\nterminator break out of the start/end tag or attribute. Callers who enabled `requireWellFormed`\nspecifically to neutralize those name-injection issues remain exposed.\n\n## Details\n\nxmldom builds every grammar production through a shared regexp builder that compiles with the `m`\nflag. The anchored full-string matcher used for element and attribute names, `QName_exact =\nreg('^', QName, '$')`, therefore inherits `m`. When it is applied as `QName_exact.test(name)` against\nan already-assembled node name, the `m` flag makes `$` match at an interior line terminator, so the\nmatcher accepts any value in which **at least one line** is a valid `QName`; the other lines are never\nconstrained. A payload whose first line is a valid `QName`, followed by a line terminator and breakout\nmarkup, is what yields a working injection.\n\nThe serializer emits the accepted name verbatim into element start/e","public_affected_ranges":["= 0.9.11"]}],"null_published_at":"2026-11-08T15:11:49.413Z","source_updated_at":"2026-09-08T21:03:21.000Z","source_disclosed_at":"2026-09-08T21:03:17.000Z","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":"2026-11-01T22:54:12.705Z"},{"id":"NVI-00014133","kind":"vulnerability","title":"xmldom: requireWellFormed element/attribute name validation is bypassable via an embedded line terminator","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jxjr-3g7g-3944","CVE-2026-83617"],"plain_summary":"GitHub lists this reviewed advisory for @xmldom/xmldom. 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-09b97674214db3ed54aad54d43215472"],"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":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.570%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.4722. Missing scores are unknown.","source_id":"sr-09b97674214db3ed54aad54d43215472"}],"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-4e29e8103b4fb349accc160acc3800f1","url":"https://github.com/advisories/GHSA-jxjr-3g7g-3944","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jxjr-3g7g-3944","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T22:54:12.705Z"},{"id":"sr-09b97674214db3ed54aad54d43215472","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-2026-83617","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:45:16.083Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4e29e8103b4fb349accc160acc3800f1"],"technology":"@xmldom/xmldom","known_exclusions":[],"conditions_summary":"## Summary\n\nAn embedded line terminator bypasses the `requireWellFormed` serializer check for element and\nattribute names. The check was added to fix GHSA-w2rr-34g9-rvrj and GHSA-4w3w-2rp5-g8jm; a name whose\nfirst line is well-formed slips past it and is serialized verbatim, so the characters after the line\nterminator break out of the start/end tag or attribute. Callers who enabled `requireWellFormed`\nspecifically to neutralize those name-injection issues remain exposed.\n\n## Details\n\nxmldom builds every grammar production through a shared regexp builder that compiles with the `m`\nflag. The anchored full-string matcher used for element and attribute names, `QName_exact =\nreg('^', QName, '$')`, therefore inherits `m`. When it is applied as `QName_exact.test(name)` against\nan already-assembled node name, the `m` flag makes `$` match at an interior line terminator, so the\nmatcher accepts any value in which **at least one line** is a valid `QName`; the other lines are never\nconstrained. A payload whose first line is a valid `QName`, followed by a line terminator and breakout\nmarkup, is what yields a working injection.\n\nThe serializer emits the accepted name verbatim into element start/e","public_affected_ranges":["= 0.9.11"]}],"null_published_at":"2026-11-04T10:04:41.564Z","source_updated_at":"2026-09-08T21:03:21.000Z","source_disclosed_at":"2026-09-08T21:03:17.000Z","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":"2026-11-01T22:54:12.705Z"},{"id":"NVI-00014133","kind":"vulnerability","title":"xmldom: requireWellFormed element/attribute name validation is bypassable via an embedded line terminator","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jxjr-3g7g-3944","CVE-2026-83617"],"plain_summary":"GitHub lists this reviewed advisory for @xmldom/xmldom. 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-4e29e8103b4fb349accc160acc3800f1"],"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":[],"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-4e29e8103b4fb349accc160acc3800f1","url":"https://github.com/advisories/GHSA-jxjr-3g7g-3944","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jxjr-3g7g-3944","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T22:54:12.705Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4e29e8103b4fb349accc160acc3800f1"],"technology":"@xmldom/xmldom","known_exclusions":[],"conditions_summary":"## Summary\n\nAn embedded line terminator bypasses the `requireWellFormed` serializer check for element and\nattribute names. The check was added to fix GHSA-w2rr-34g9-rvrj and GHSA-4w3w-2rp5-g8jm; a name whose\nfirst line is well-formed slips past it and is serialized verbatim, so the characters after the line\nterminator break out of the start/end tag or attribute. Callers who enabled `requireWellFormed`\nspecifically to neutralize those name-injection issues remain exposed.\n\n## Details\n\nxmldom builds every grammar production through a shared regexp builder that compiles with the `m`\nflag. The anchored full-string matcher used for element and attribute names, `QName_exact =\nreg('^', QName, '$')`, therefore inherits `m`. When it is applied as `QName_exact.test(name)` against\nan already-assembled node name, the `m` flag makes `$` match at an interior line terminator, so the\nmatcher accepts any value in which **at least one line** is a valid `QName`; the other lines are never\nconstrained. A payload whose first line is a valid `QName`, followed by a line terminator and breakout\nmarkup, is what yields a working injection.\n\nThe serializer emits the accepted name verbatim into element start/e","public_affected_ranges":["= 0.9.11"]}],"null_published_at":"2026-11-02T10:00:37.212Z","source_updated_at":"2026-09-08T21:03:21.000Z","source_disclosed_at":"2026-09-08T21:03:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T22:54:12.705Z"}],"next_cursor":null,"snapshot_revision":"42594"}