{"items":[{"id":"NVI-00009020","kind":"vulnerability","title":"LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-6q5m-63h6-5x4v","CVE-2026-33287"],"plain_summary":"GitHub lists this reviewed advisory for liquidjs. 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-074f84b5e6963f37d74437af3252271c"],"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 10.25.1 for liquidjs. Confirm the publisher’s latest guidance.","source_ids":["sr-e0f4547ca3554a9373ef1e2d79e6d405"],"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":"2026-10-29T17:28:59.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7ad3eba15470fbaef0d1d6bf9adb1334"},{"kind":"CVSS","as_of":"2026-06-17T10:37:15.307Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-3c8f8b47e6cb35dac50c9c7dacdf3c1e"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.479%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.41379. Missing scores are unknown.","source_id":"sr-074f84b5e6963f37d74437af3252271c"}],"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-7ad3eba15470fbaef0d1d6bf9adb1334","url":"https://github.com/advisories/GHSA-6q5m-63h6-5x4v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6q5m-63h6-5x4v","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"},{"id":"sr-e0f4547ca3554a9373ef1e2d79e6d405","url":"https://github.com/advisories/GHSA-6q5m-63h6-5x4v","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-6q5m-63h6-5x4v","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-11-01T01:40:28.484Z"},{"id":"sr-3c8f8b47e6cb35dac50c9c7dacdf3c1e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33287","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-33287","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:34:42.177Z"},{"id":"sr-074f84b5e6963f37d74437af3252271c","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-2026-33287","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.377Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7ad3eba15470fbaef0d1d6bf9adb1334"],"technology":"liquidjs","known_exclusions":[],"conditions_summary":"### Summary\nThe `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a backreference to the matched substring. The filter only charges `memoryLimit` for the input string length, not the amplified output. An attacker can achieve exponential memory amplification (up to 625,000:1) while staying within the `memoryLimit` budget, leading to denial of service.\n\n### Details\nThe `replace_first` filter in `src/builtin/filters/string.ts:130-133` delegates to JavaScript's native `String.prototype.replace()`. This native method interprets special replacement patterns including `$&` (insert the matched substring), `$'` (insert the portion after the match), and `` $` `` (insert the portion before the match).\n\nThe filter calls `memoryLimit.use(str.length)` to account for the **input** string's memory cost, but the **output** string — potentially many times larger due to `$&` expansion — is never charged against the memory limit.\n\nAn attacker can build a 1MB string (within `memoryLimit` budget), then use `replace_first` with a replacement string containing 50 repetitions of `$&`. Each `$&` expands to the full matched string (1MB), producing a 50","public_affected_ranges":["< 10.25.1"]},{"certainty":"source_listed","source_ids":["sr-e0f4547ca3554a9373ef1e2d79e6d405"],"technology":"liquidjs","known_exclusions":[],"conditions_summary":"### Summary\nThe `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a backreference to the matched substring. The filter only charges `memoryLimit` for the input string length, not the amplified output. An attacker can achieve exponential memory amplification (up to 625,000:1) while staying within the `memoryLimit` budget, leading to denial of service.\n\n### Details\nThe `replace_first` filter in `src/builtin/filters/string.ts:130-133` delegates to JavaScript's native `String.prototype.replace()`. This native method interprets special replacement patterns including `$&` (insert the matched substring), `$'` (insert the portion after the match), and `` $` `` (insert the portion before the match).\n\nThe filter calls `memoryLimit.use(str.length)` to account for the **input** string's memory cost, but the **output** string — potentially many times larger due to `$&` expansion — is never charged against the memory limit.\n\nAn attacker can build a 1MB string (within `memoryLimit` budget), then use `replace_first` with a replacement string containing 50 repetitions of `$&`. Each `$&` expands to the full matched string (1MB), producing a 50","public_affected_ranges":["SEMVER: introduced 0; fixed 10.25.1"]}],"null_published_at":"2026-11-04T10:04:35.936Z","source_updated_at":"2026-10-29T17:28:59.000Z","source_disclosed_at":"2026-03-25T17:44:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009020","kind":"vulnerability","title":"LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6q5m-63h6-5x4v","CVE-2026-33287"],"plain_summary":"GitHub lists this reviewed advisory for liquidjs. 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-074f84b5e6963f37d74437af3252271c"],"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 10.25.1 for liquidjs. Confirm the publisher’s latest guidance.","source_ids":["sr-e0f4547ca3554a9373ef1e2d79e6d405"],"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":"2026-10-29T17:28:59.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7ad3eba15470fbaef0d1d6bf9adb1334"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.479%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.41379. Missing scores are unknown.","source_id":"sr-074f84b5e6963f37d74437af3252271c"}],"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-7ad3eba15470fbaef0d1d6bf9adb1334","url":"https://github.com/advisories/GHSA-6q5m-63h6-5x4v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-33287","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.377Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7ad3eba15470fbaef0d1d6bf9adb1334"],"technology":"liquidjs","known_exclusions":[],"conditions_summary":"### Summary\nThe `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a backreference to the matched substring. The filter only charges `memoryLimit` for the input string length, not the amplified output. An attacker can achieve exponential memory amplification (up to 625,000:1) while staying within the `memoryLimit` budget, leading to denial of service.\n\n### Details\nThe `replace_first` filter in `src/builtin/filters/string.ts:130-133` delegates to JavaScript's native `String.prototype.replace()`. This native method interprets special replacement patterns including `$&` (insert the matched substring), `$'` (insert the portion after the match), and `` $` `` (insert the portion before the match).\n\nThe filter calls `memoryLimit.use(str.length)` to account for the **input** string's memory cost, but the **output** string — potentially many times larger due to `$&` expansion — is never charged against the memory limit.\n\nAn attacker can build a 1MB string (within `memoryLimit` budget), then use `replace_first` with a replacement string containing 50 repetitions of `$&`. Each `$&` expands to the full matched string (1MB), producing a 50","public_affected_ranges":["< 10.25.1"]},{"certainty":"source_listed","source_ids":["sr-e0f4547ca3554a9373ef1e2d79e6d405"],"technology":"liquidjs","known_exclusions":[],"conditions_summary":"### Summary\nThe `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a backreference to the matched substring. The filter only charges `memoryLimit` for the input string length, not the amplified output. An attacker can achieve exponential memory amplification (up to 625,000:1) while staying within the `memoryLimit` budget, leading to denial of service.\n\n### Details\nThe `replace_first` filter in `src/builtin/filters/string.ts:130-133` delegates to JavaScript's native `String.prototype.replace()`. This native method interprets special replacement patterns including `$&` (insert the matched substring), `$'` (insert the portion after the match), and `` $` `` (insert the portion before the match).\n\nThe filter calls `memoryLimit.use(str.length)` to account for the **input** string's memory cost, but the **output** string — potentially many times larger due to `$&` expansion — is never charged against the memory limit.\n\nAn attacker can build a 1MB string (within `memoryLimit` budget), then use `replace_first` with a replacement string containing 50 repetitions of `$&`. Each `$&` expands to the full matched string (1MB), producing a 50","public_affected_ranges":["SEMVER: introduced 0; fixed 10.25.1"]}],"null_published_at":"2026-11-01T14:34:14.089Z","source_updated_at":"2026-10-29T17:28:59.000Z","source_disclosed_at":"2026-03-25T17:44:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009020","kind":"vulnerability","title":"LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6q5m-63h6-5x4v","CVE-2026-33287"],"plain_summary":"GitHub lists this reviewed advisory for liquidjs. 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-074f84b5e6963f37d74437af3252271c"],"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":"2026-10-29T17:28:59.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7ad3eba15470fbaef0d1d6bf9adb1334"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.479%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.41379. Missing scores are unknown.","source_id":"sr-074f84b5e6963f37d74437af3252271c"}],"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-7ad3eba15470fbaef0d1d6bf9adb1334","url":"https://github.com/advisories/GHSA-6q5m-63h6-5x4v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. 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An attacker can achieve exponential memory amplification (up to 625,000:1) while staying within the `memoryLimit` budget, leading to denial of service.\n\n### Details\nThe `replace_first` filter in `src/builtin/filters/string.ts:130-133` delegates to JavaScript's native `String.prototype.replace()`. This native method interprets special replacement patterns including `$&` (insert the matched substring), `$'` (insert the portion after the match), and `` $` `` (insert the portion before the match).\n\nThe filter calls `memoryLimit.use(str.length)` to account for the **input** string's memory cost, but the **output** string — potentially many times larger due to `$&` expansion — is never charged against the memory limit.\n\nAn attacker can build a 1MB string (within `memoryLimit` budget), then use `replace_first` with a replacement string containing 50 repetitions of `$&`. Each `$&` expands to the full matched string (1MB), producing a 50","public_affected_ranges":["< 10.25.1"]}],"null_published_at":"2026-10-31T22:13:44.222Z","source_updated_at":"2026-10-29T17:28:59.000Z","source_disclosed_at":"2026-03-25T17:44:23.000Z","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":"2026-10-31T21:55:49.621Z"}],"next_cursor":null,"snapshot_revision":"42594"}