> CVE-2026-27575 [CRITICAL]

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PUBLISHED
2026-02-25 22:16
MODIFIED
2026-02-25 22:16
CVSS_SCORE V3
9.1
EPSS (Prob. Exploit)
0.47%
Top 58.9%
DATA SOURCES:
NVD 🔗 2026-02-25 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-10-28 OSV 🔗 2026-11-08

> DESCRIPTION

Vikunja is an open-source self-hosted task management platform. Prior to version 2.0.0, the application allows users to set weak passwords (e.g., 1234, password) without enforcing minimum strength requirements. Additionally, active sessions remain valid after a user changes their password. An attacker who compromises an account (via brute-force or credential stuffing) can maintain persistent access even after the victim resets their password. Version 2.0.0 contains a fix.

> 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:H/A:N
EXPLOITABILITY
3.9
IMPACT
5.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

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

> WEAKNESSES

CWE-521 CWE-613

> CWE DETAILED DESCRIPTIONS

CWE-521: Weak Password Requirements - The product does not require that users should have strong passwords. | CWE-613: DEPRECATED: Insufficient Session Expiration - This entry has been deprecated because it was insufficiently clear. Consider CWE-1462 and its descendants.

> GITHUB SECURITY ADVISORY

GHSA-3ccg-x393-96v8 CRITICAL

Vijkunja has Weak Password Policy Combined with Persistent Sessions After Password Change

AFFECTED PACKAGES:
GO / code.vikunja.io/api
<= 0.24.6

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Vijkunja has Weak Password Policy Combined with Persistent Sessions After Password Change

AFFECTED PACKAGES:
Unknown / Unknown
38 versions affected
ALIASES:
GHSA-3ccg-x393-96v8, GO-2026-4551

> HISTORIQUE DES MODIFICATIONS

Première apparition
25/02/2026 22:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:58
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-521: Weak Password Requirements - The product does not require that users should have strong passwords. | CWE-613: Insufficient Session Expiration - According to WASC, "Insufficient Session Expira...
Nouvelle valeur:
CWE-521: Weak Password Requirements - The product does not require that users should have strong passwords. | CWE-613: DEPRECATED: Insufficient Session Expiration - This entry has been deprecated beca...
📊 ENRICHISSEMENT 01/03/2026 06:46
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-521: Weak Password Requirements - The product does not require that users should have strong passwords. | CWE-613: Insufficient Session Expiration - According to WASC, "Insufficient Session Expira...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-3ccg-x393-96v8
https://vikunja.io/changelog/vikunja-v2.0.0-was-released
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