LangGraph: Unencoded identifiers in LangGraph SDK v3 streaming can redirect authenticated GET requests (langchain-ai langgraph)

CVE-2026-118667
MEDIUM 4.3

En bref

Source
NVD
EPSS
EPSS 0.39 % · centile 34 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
GitHub_M
Statut NVD
Awaiting Analysis

Description

LangGraph Python SDK is used to connect to running LangGraph API servers, manage assistants, threads and stream runs from Python applications. From langgraph-sdk 0.4.0 until 0.4.6, and from langgraph 1.2.3 until 1.2.14 when RemoteGraph v3 streaming uses an affected langgraph-sdk version, the synchronous and asynchronous v3 stream get_tree and _fetch_state helpers interpolate caller-controlled assistant_id and thread_id values into authenticated GET request paths without using _quote_path_param. Relative path segments can therefore be normalized into another readable path on the configured server while retaining authentication headers. This issue is fixed in langgraph-sdk 0.4.6 and langgraph 1.2.14.

Faiblesses (CWE)

  • CWE-22 — Traversée de répertoire

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NGitHub_M
CVSS 3.1MEDIUM 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NNVD · security-advisories@github.com (Secondary)

Avis

Références européennes

Produits affectés

ProduitVersions
langchain-ai · langgraphaffected >= 1.2.3, < 1.2.14
langchain-ai · langgraph-sdkaffected >= 0.4.0, < 0.4.6

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD