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LangChain: Path traversal and sandbox escape in LangChain file-search middleware and loaders
LangChain: Path traversal and sandbox escape in LangChain file-search middleware and loaders
Affected packages
- langchain— before 1.3.9
- langchain-anthropic— before 1.4.6
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/langchain-ai/langchain/security/advisories/GHSA-gr75-jv2w-4656
- https://nvd.nist.gov/vuln/detail/CVE-2026-55443
- https://github.com/langchain-ai/langchain/commit/dcaf7795a3e6590af55c3ff7bda6add6355e9ea6
- https://github.com/langchain-ai/langchain
Structured record: https://osv.dev/vulnerability/GHSA-gr75-jv2w-4656
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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