CVE-2026-14742
2.3
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Summary
A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| langchain-ai | langgraph | 1.2.0 | affected |
| langchain-ai | langgraph | 1.2.1 | affected |
| langchain-ai | langgraph | 1.2.2 | affected |
| langchain-ai | langgraph | 1.2.3 | affected |
| langchain-ai | langgraph | 1.2.4 | affected |
Weaknesses
- CWE-328: Use of Weak Hash
- CWE-327: Risky Cryptographic Algorithm
References
- https://vuldb.com/vuln/376328
- https://vuldb.com/vuln/376328/cti
- https://vuldb.com/cve/CVE-2026-14742
- https://vuldb.com/submit/849217
- https://github.com/langchain-ai/langgraph/issues/8009
- https://github.com/langchain-ai/langgraph/pull/8069
- https://github.com/langchain-ai/langgraph/
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.