> CVE-2026-33435 [HIGH]

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PUBLISHED
2026-04-15 19:16
MODIFIED
2026-04-15 19:16
CVSS_SCORE V3
8.0
EPSS (Prob. Exploit)
0.88%
Top 41.2%
DATA SOURCES:
NVD 🔗 2026-04-15 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 OSV 🔗 2026-09-20

> DESCRIPTION

Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can limit the scope of the vulnerability by restricting access to the project backup, as it is only accessible to users who can create projects.

> 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:H/PR:H/UI:N/S:C/C:H/I:H/A:H
EXPLOITABILITY
1.3
IMPACT
6.0

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
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
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
High (H)
Authentifié avec privilèges administratifs
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-23 CWE-94 CWE-434

> CWE DETAILED DESCRIPTIONS

CWE-23: Relative Path Traversal - The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. | CWE-94: Improper Control of Generation of Code - The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. | CWE-434: Unrestricted Upload of File with Dangerous Type - The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

> GITHUB SECURITY ADVISORY

GHSA-558g-h753-6m33 HIGH

Weblate: Remote code execution during backup restoration

AFFECTED PACKAGES:
PIP / weblate
< 5.17
Fixed in: 5.17

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Weblate: Remote code execution during backup restoration

AFFECTED PACKAGES:
Unknown / Unknown
148 versions affected
ALIASES:
GHSA-558g-h753-6m33, PYSEC-2026-154

> HISTORIQUE DES MODIFICATIONS

Première apparition
15/04/2026 19:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-23: Relative Path Traversal - The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that ...
Nouvelle valeur:
CWE-23: Relative Path Traversal - The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that ...
📊 ENRICHISSEMENT 01/05/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-23: Relative Path Traversal - The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that ...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/WeblateOrg/weblate/pull/18549
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-558g-h753-6m33
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