CVE-2026-14742 langchain-ai langgraph Task Result Cache _cache.py _freeze weak hash
Attackers can exploit weak hashing in the task result cache to potentially bypass security controls or manipulate cache keys.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-14742?
CVE-2026-14742 is a low-severity vulnerability in langchain-ai langgraph, published on 5 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-14742?
How do I fix CVE-2026-14742?
No fix has been published for CVE-2026-14742 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-14742 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-14742 exists.
Sources
Also known as GHSA-rff8-98wf-8rv4.