CVE-2026-14742
LowCVSS 3.1Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
A vulnerability was found in langgraph library from langchain-ai up to version 1.2.4 in the _freeze function of _cache.py, where the default_cache_key argument causes use of a weak hash function. The attack can be performed remotely but is difficult to exploit.
Risk Assessment
The organization is at risk of integrity violation of the Task Result Cache, potentially leading to key collisions and unauthorized data access or result manipulation.
Recommendation
Immediately update langgraph to a version above 1.2.4 after the fix is released, or apply a temporary workaround such as disabling the vulnerable function.
Original NVD description (English source)
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.