| Component | LangChain |
| Severity | high (CVSS 7.8) |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Published (NVD) | 2024-09-17 |
| Last modified | 2026-06-17 |
| Affected versions | langchain < 0.2.9 |
| Fixed in | 0.2.9 |
| Weakness | CWE-502 |
| CISA KEV | not listed |
NVD description
A vulnerability in the FAISS.deserialize_from_bytes function of langchain-ai/langchain allows for pickle deserialization of untrusted data. This can lead to the execution of arbitrary commands via the os.system function. The issue affects the latest version of the product.
What to do
- Upgrade LangChain to
0.2.9or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2024-5998
- https://github.com/langchain-ai/langchain/commit/604dfe2d99246b0c09f047c604f0c63eafba31e7
- https://huntr.com/bounties/fa3a2753-57c3-4e08-a176-d7a3ffda28fe
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