Auth bypass in Langchain-ai Langgraph
CVE-2026-71433
LangGraph Checkpoint Postgres and SQLite Checkpoint are the Postgres and SQLite implementations of LangGraph's checkpoint saver. Prior to 3.1.1, the langgraph-checkpoint-postgres and langgraph-checkpoint-sqlite packages persisted hierarchi…
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Langchain-ai Langgraph — versions < 3.1.1
- Langchain-ai Langgraph-checkpoint-postgres — versions < 3.1.1
- Langchain-ai Langgraph-checkpoint-sqlite — versions < 3.1.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-71433?
- CVE-2026-71433 is a medium-severity vulnerability in Langchain-ai Langgraph, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-08-06.
- How severe is CVE-2026-71433?
- Medium severity. CVSS v3 base score is 5.3 out of 10.