CVE-2026-28277
LangGraph: Unsafe msgpack deserialization in LangGraph checkpoint loading
MEDIUM 6.8
En bref
- Source
- NVD
- EPSS
- EPSS 4.89 % · centile 92 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Analyzed
Description
LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In version 1.0.9 and prior, LangGraph checkpointers can load msgpack-encoded checkpoints that reconstruct Python objects during deserialization. If an attacker can modify checkpoint data in the backing store (for example, after a database compromise or other privileged write access to the persistence layer), they can potentially supply a crafted payload that triggers unsafe object reconstruction when the checkpoint is loaded. No known patch is public.
Faiblesses (CWE)
- CWE-502 — Désérialisation de données non fiables
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
Avis
- GHSA-g48c-2wqr-h844 — LangGraph checkpoint loading has unsafe msgpack deserialization
- PYSEC-2026-83 — LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In version 1.0.9 and pri
Références européennes
- ENISA EUVD · EUVD-2026-9860
- GCVE · GCVE-0-2026-28277
Avis du CERT-FR
- CERTFR-2026-AVI-1056 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:langchain:langgraph:*:*:*:*:*:*:*:*≤ 1.0.9
Produits affectés
| Produit | Versions |
|---|---|
| langchain-ai · langgraph | affected <= 1.0.9 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |