{"action":"Upgrade langchain-core to 0.1.35 or later.","affected":[{"fixed":"0.1.35","introduced":"0"}],"component":"langchain-core","cve_ids":["CVE-2024-1455"],"ecosystem":"PyPI","epss":0.00764,"exploited":false,"fixed_versions":["0.1.35"],"ghsa_id":"GHSA-q84m-rmw3-4382","id":"tcs_01M5KGT344QHZXFPJ1MJHHYJYE","modified_at":"2026-07-07T17:46:47.138281611Z","published_at":"2026-07-07T11:45:36.601622Z","references":["https://osv.dev/vulnerability/PYSEC-2026-1519","https://nvd.nist.gov/vuln/detail/CVE-2024-1455","https://github.com/langchain-ai/langchain/pull/17250","https://github.com/langchain-ai/langchain/pull/19653","https://github.com/langchain-ai/langchain/pull/19660","https://github.com/langchain-ai/langchain/commit/727d5023ce88e18e3074ef620a98137d26ff92a3","https://github.com/langchain-ai/langchain","https://huntr.com/bounties/4353571f-c70d-4bfd-ac08-3a89cecb45b6","https://pypi.org/project/langchain-core","https://github.com/advisories/GHSA-q84m-rmw3-4382"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-1519","url":"https://osv.dev/vulnerability/PYSEC-2026-1519"}],"summary":"LangChain's XMLOutputParser vulnerable to XML Entity Expansion"}