{"id":"CVE-2026-73089","state":"PUBLISHED","title":"Browserslist: Unbounded memory growth (no cache eviction) via distinct query results, leading to eventual OOM","description":"Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct `(queries, context)` result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since `<year>-<month>-<day>` queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.","publishedAt":"2026-08-11T17:05:38.760Z","updatedAt":"2026-08-13T14:07:57.169Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["browserslist browserslist"],"affected":[{"vendor":"browserslist","product":"browserslist","versions":[{"version":"< 4.28.7","status":"affected"}]}],"references":["https://github.com/browserslist/browserslist/security/advisories/GHSA-c83g-rgw3-j3cx","https://github.com/browserslist/browserslist/commit/f2931a3ff2a3a31abf84ef01a7400b270aad6405","https://github.com/browserslist/browserslist/releases/tag/4.28.7"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73089.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73089","state":"PUBLISHED","datePublished":"2026-08-11T17:05:38.760Z","dateUpdated":"2026-08-13T14:07:57.169Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-10T19:37:41.445Z"},"containers":{"cna":{"title":"Browserslist: Unbounded memory growth (no cache eviction) via distinct query results, leading to eventual OOM","descriptions":[{"lang":"en","value":"Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct `(queries, context)` result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since `<year>-<month>-<day>` queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7."}],"affected":[{"vendor":"browserslist","product":"browserslist","versions":[{"version":"< 4.28.7","status":"affected"}]}],"references":[{"url":"https://github.com/browserslist/browserslist/security/advisories/GHSA-c83g-rgw3-j3cx","name":"https://github.com/browserslist/browserslist/security/advisories/GHSA-c83g-rgw3-j3cx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/browserslist/browserslist/commit/f2931a3ff2a3a31abf84ef01a7400b270aad6405","name":"https://github.com/browserslist/browserslist/commit/f2931a3ff2a3a31abf84ef01a7400b270aad6405","tags":["x_refsource_MISC"]},{"url":"https://github.com/browserslist/browserslist/releases/tag/4.28.7","name":"https://github.com/browserslist/browserslist/releases/tag/4.28.7","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-11T17:05:38.760Z"},"source":{"advisory":"GHSA-c83g-rgw3-j3cx","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T13:14:03.856150Z","id":"CVE-2026-73089","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-13T14:07:57.169Z"}}]}}}