{"id":"CVE-2025-53537","state":"PUBLISHED","title":"LibHTP's memory leak with lzma can lead to resource starvation","description":"LibHTP is a security-aware parser for the HTTP protocol and its related bits and pieces. In versions 0.5.50 and below, there is a traffic-induced memory leak that can starve the process of memory, leading to loss of visibility. To workaround this issue, set `suricata.yaml app-layer.protocols.http.libhtp.default-config.lzma-enabled` to false. This issue is fixed in version 0.5.51.","publishedAt":"2025-07-23T20:35:30.824Z","updatedAt":"2025-07-23T20:48:59.864Z","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":["OISF libhtp"],"affected":[{"vendor":"OISF","product":"libhtp","versions":[{"version":"< 0.5.51","status":"affected"}]}],"references":["https://github.com/OISF/libhtp/security/advisories/GHSA-v3qq-h8mh-vph7","https://github.com/OISF/libhtp/commit/9037ea35110a0d97be5cedf8d31fb4cd9a38c7a7"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:09:31.862Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/53xxx/CVE-2025-53537.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-53537","state":"PUBLISHED","datePublished":"2025-07-23T20:35:30.824Z","dateUpdated":"2025-07-23T20:48:59.864Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-07-02T15:15:11.515Z"},"containers":{"cna":{"title":"LibHTP's memory leak with lzma can lead to resource starvation","descriptions":[{"lang":"en","value":"LibHTP is a security-aware parser for the HTTP protocol and its related bits and pieces. In versions 0.5.50 and below, there is a traffic-induced memory leak that can starve the process of memory, leading to loss of visibility. To workaround this issue, set `suricata.yaml app-layer.protocols.http.libhtp.default-config.lzma-enabled` to false. This issue is fixed in version 0.5.51."}],"affected":[{"vendor":"OISF","product":"libhtp","versions":[{"version":"< 0.5.51","status":"affected"}]}],"references":[{"url":"https://github.com/OISF/libhtp/security/advisories/GHSA-v3qq-h8mh-vph7","name":"https://github.com/OISF/libhtp/security/advisories/GHSA-v3qq-h8mh-vph7","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/OISF/libhtp/commit/9037ea35110a0d97be5cedf8d31fb4cd9a38c7a7","name":"https://github.com/OISF/libhtp/commit/9037ea35110a0d97be5cedf8d31fb4cd9a38c7a7","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-401","lang":"en","description":"CWE-401: Missing Release of Memory after Effective Lifetime","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-07-23T20:35:30.824Z"},"source":{"advisory":"GHSA-v3qq-h8mh-vph7","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-07-23T20:48:53.174658Z","id":"CVE-2025-53537","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":"2025-07-23T20:48:59.864Z"}}]}}}