{"action":"Upgrade langchain to 1.3.9 or later.","affected":[{"fixed":"1.3.9","introduced":"0"}],"component":"langchain","cve_ids":["CVE-2026-55443"],"ecosystem":"PyPI","epss":0.0021,"exploited":false,"fixed_versions":["1.3.9"],"ghsa_id":"GHSA-gr75-jv2w-4656","id":"tcs_01M5KGY07V3S1RJYXMM9NNB2TR","modified_at":"2026-07-13T16:43:09.845932020Z","published_at":"2026-06-22T19:17:21.537Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2192","https://github.com/langchain-ai/langchain/security/advisories/GHSA-gr75-jv2w-4656","https://github.com/langchain-ai/langchain/commit/dcaf7795a3e6590af55c3ff7bda6add6355e9ea6"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2192","url":"https://osv.dev/vulnerability/PYSEC-2026-2192"}],"summary":"LangChain is a framework for building agents and LLM-powered applications. Prior to 1.3.9, several LangChain components that resolve filesystem paths or expand search patterns do not consistently conf"}