{"id":"CVE-2024-2965","aliases":["GHSA-3hjh-jh2h-vrg6","PYSEC-2024-118","PYSEC-2026-2561"],"url":"https://o3.security/vulnerability/CVE-2024-2965","summary":"Denial-of-Service in LangChain SitemapLoader in langchain-ai/langchain","details":"A Denial-of-Service (DoS) vulnerability exists in the `SitemapLoader` class of the `langchain-ai/langchain` repository, affecting all versions. The `parse_sitemap` method, responsible for parsing sitemaps and extracting URLs, lacks a mechanism to prevent infinite recursion when a sitemap URL refers to the current sitemap itself. This oversight allows for the possibility of an infinite loop, leading to a crash by exceeding the maximum recursion depth in Python. This vulnerability can be exploited to occupy server socket/port resources and crash the Python process, impacting the availability of services relying on this functionality.","published":"2024-06-06T18:52:54.353Z","modified":"2026-08-08T03:48:03.025184369Z","cvss":{"score":4.2,"severity":"MEDIUM","vector":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"langchain-community","fixedVersion":"0.2.5"},{"ecosystem":"PyPI","name":"langchain","fixedVersion":"0.2.5"}],"fix":{"url":"https://github.com/langchain-ai/langchain/commit/73c42306745b0831aa6fe7fe4eeb70d2c2d87a82","label":"langchain-ai/langchain@73c4230"},"references":[{"type":"WEB","url":"https://huntr.com/bounties/90b0776d-9fa6-4841-aac4-09fde5918cae"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/2xxx/CVE-2024-2965.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-2965"},{"type":"FIX","url":"https://github.com/langchain-ai/langchain/commit/73c42306745b0831aa6fe7fe4eeb70d2c2d87a82"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:03.025184369Z"}}