{"id":"PYSEC-2026-374","summary":"LangChain Experimental Eval Injection vulnerability","details":"langchain_experimental (aka LangChain Experimental) 0.1.17 through 0.3.0 for LangChain allows attackers to execute arbitrary code through sympy.sympify (which uses eval) in LLMSymbolicMathChain. LLMSymbolicMathChain was introduced in fcccde406dd9e9b05fc9babcbeb9ff527b0ec0c6 (2023-10-05).","aliases":["CVE-2024-46946","GHSA-p2qj-r53j-h3xj"],"modified":"2026-07-01T20:22:55.391040Z","published":"2026-06-29T11:50:41.097287Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-46946"},{"type":"WEB","url":"https://docs.sympy.org/latest/modules/codegen.html"},{"type":"WEB","url":"https://gist.github.com/12end/68c0c58d2564ef4141bccd4651480820#file-cve-2024-46946-txt"},{"type":"PACKAGE","url":"https://github.com/langchain-ai/langchain"},{"type":"WEB","url":"https://github.com/langchain-ai/langchain/releases/tag/langchain-experimental%3D%3D0.3.0"},{"type":"PACKAGE","url":"https://pypi.org/project/langchain-experimental"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-p2qj-r53j-h3xj"}],"affected":[{"package":{"name":"langchain-experimental","ecosystem":"PyPI","purl":"pkg:pypi/langchain-experimental"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.1.17"},{"last_affected":"0.3.0"}]}],"versions":["0.3.0","0.3.0.dev1"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/langchain-experimental/PYSEC-2026-374.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}