Low 3.1Published Jul 5, 2026

CVE-2026-14742A vulnerability was determined in langchain-ai langgraph up to 1.2.4.

Updated under an hour ago (2026-10-19 13:00 UTC)

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Exploited in the last 30 days

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.

CVSS: 3.1 LOW (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-327, CWE-328
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Deferred
Record last updated: Jul 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

No affected products are listed yet.

References

https://github.com/langchain-ai/langgraph/
https://github.com/langchain-ai/langgraph/issues/8009
https://github.com/langchain-ai/langgraph/pull/8069
https://vuldb.com/cve/CVE-2026-14742
https://vuldb.com/submit/849217
https://vuldb.com/vuln/376328
https://vuldb.com/vuln/376328/cti

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.