CVE-2026-71433: langchain-ai langgraph · Information Exposure
Affects langchain-ai langgraphSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium : upgrade to 3.1.1 when convenient.
Data as of 5 Nov 2026, 00:01 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.1.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 6 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade langgraph and langgraph-checkpoint-sqlite and langgraph-checkpoint-postgres to 3.1.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| langchain-ailanggraph | Affected
| Fixed in
|
| langchain-ailanggraph-checkpoint-sqlite | Affected
| Fixed in
|
| langchain-ailanggraph-checkpoint-postgres | Affected
| Fixed in
|
AI-suggested
Upgrade langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite to version 3.1.1 or later, where the issue is fixed. Patch status is confirmed by the vendor advisory indicating the fix in version 3.1.1.
Description
A vulnerability in langgraph's checkpoint saver implementations for Postgres and SQLite allows an authenticated user to access stored items belonging to other tenants or users due to improper namespace scoping. This occurs because hierarchical namespaces are persisted as dot-joined strings and reads are scoped by prefix matching, which can overlap with sibling namespaces or those containing unescaped pattern metacharacters. The issue affects versions prior to 3.1.1 and is fixed in version 3.1.1.
References
- github.com/langchain-ai/langgraph/security/advisories/GHSA-47pj-3jcm-6whg (opens in a new tab)
- github.com/langchain-ai/langgraph/pull/8478 (opens in a new tab)
- github.com/langchain-ai/langgraph/commit/66ebe1a0da921e73f0f9f879ba105d314c079f7c (opens in a new tab)
- github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres%3D%3D3.1.1 (opens in a new tab)
- github.com/langchain-ai/langgraph/releases/tag/checkpointsqlite%3D%3D3.1.1 (opens in a new tab)