Denial-of-Service in LangChain SitemapLoader in langchain-ai/langchain (langchain-ai langchain-ai/langchain)
En bref
- Source
- NVD
- EPSS
- EPSS 0.30 % · centile 23 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- @huntr_ai
- Statut NVD
- Modified
Description
A Denial-of-Service (DoS) vulnerability exists in the `SitemapLoader` class of the `langchain-ai/langchain` repository, affecting all versions. The `parse_sitemap` method, responsible for parsing sitemaps and extracting URLs, lacks a mechanism to prevent infinite recursion when a sitemap URL refers to the current sitemap itself. This oversight allows for the possibility of an infinite loop, leading to a crash by exceeding the maximum recursion depth in Python. This vulnerability can be exploited to occupy server socket/port resources and crash the Python process, impacting the availability of services relying on this functionality.
Faiblesses (CWE)
- CWE-674 — Récursion non maîtrisée
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 4.2 | CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | @huntr_ai |
| CVSS 3.1 | MEDIUM 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 4.2 | CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · security@huntr.dev (Secondary) |
Avis
- GHSA-3hjh-jh2h-vrg6 — Denial of service in langchain-community
- PYSEC-2024-118 — A Denial-of-Service (DoS) vulnerability exists in the `SitemapLoader` class of the `langchain-ai/langchain` repository, affecting all versions. The `parse_sitem
- PYSEC-2026-2561 — Denial of service in langchain-community
Références européennes
- ENISA EUVD · EUVD-2024-0090
- GCVE · GCVE-0-2024-2965
Avis du CERT-FR
- CERTFR-2025-AVI-0538 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:langchain:langchain:*:*:*:*:*:*:*:*< 0.2.5
Produits affectés
| Produit | Versions |
|---|---|
| langchain-ai · langchain-ai/langchain | affected unspecified < 0.2.5 |
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 |