> CVE-2026-59731 [HIGH]

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PUBLISHED
2026-07-08 17:17
MODIFIED
2026-07-08 17:17
CVSS_SCORE V3
8.2
EPSS (Prob. Exploit)
0.33%
Top 73.6%
DATA SOURCES:
NVD 🔗 2026-07-08 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-11-02

> DESCRIPTION

Astro is a web framework for content-driven websites. Version 6.4.7 performs authorization decisions on a partially decoded pathname after reaching the iterative URL decoder limit, while later rewrite route matching performs an additional decodeURI() operation and can resolve the request to a protected route. This issue is fixed in version 6.4.8.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EXPLOITABILITY
3.9
IMPACT
4.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-647

> CWE DETAILED DESCRIPTIONS

CWE-647: Use of Non-Canonical URL Paths for Authorization Decisions - The product defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Astro 6.4.7 Authorization Bypass via Decode Iteration Limit and Rewrite Path Canonicalization Mismatch

AFFECTED PACKAGES:
Unknown / Unknown
1 versions affected
ALIASES:
GHSA-vj59-8hwv-xxmv

> HISTORIQUE DES MODIFICATIONS

Première apparition
08/07/2026 17:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-647: Use of Non-Canonical URL Paths for Authorization Decisions - The product defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical. This can ...
Nouvelle valeur:
CWE-647: Use of Non-Canonical URL Paths for Authorization Decisions - The product defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical.
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-647: Use of Non-Canonical URL Paths for Authorization Decisions - The product defines policy namespaces and makes authorization decisions based on the assumption that a URL is canonical. This can ...
Total des modifications: 2 Dernière mise à jour: 5 days ago

> REFERENCES

https://github.com/withastro/astro/commit/27c80ea92248993e5fce94b2c26d87d611ab67...
https://github.com/withastro/astro/pull/17109
https://github.com/withastro/astro/releases/tag/[email protected]
https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv
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