> CVE-2026-42354 [CRITICAL]

« BACK_TO_HOME
PUBLISHED
2026-05-08 23:16
MODIFIED
2026-05-08 23:16
CVSS_SCORE V3
9.1
EPSS (Prob. Exploit)
0.62%
Top 49.9%
DATA SOURCES:
NVD đź”— 2026-05-09 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-08 GITHUB đź”— 2026-11-05 OSV đź”— 2026-11-02

> DESCRIPTION

Sentry is an error tracking and performance monitoring tool. From version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation of Sentry. The vulnerability allows an attacker to take over any user account by using a malicious SAML Identity Provider and another organization on the same Sentry instance. The victim email address must be known in order to exploit this vulnerability. This issue has been patched in version 26.4.1.

> 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-290

> CWE DETAILED DESCRIPTIONS

CWE-290: Authentication Bypass by Spoofing - This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

> GITHUB SECURITY ADVISORY

GHSA-rcmw-7mc7-3rj7 CRITICAL

Sentry's improper authentication on SAML SSO process allows user identity linking

AFFECTED PACKAGES:
PIP / sentry
>= 21.12.0, <= 26.4.0
Fixed in: 26.4.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Sentry: Improper authentication on SAML SSO process allows user identity linking

AFFECTED PACKAGES:
Unknown / Unknown
ALIASES:
GHSA-rcmw-7mc7-3rj7, PYSEC-2026-534

> HISTORIQUE DES MODIFICATIONS

Première apparition
08/05/2026 23:16
Source: NVD
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-290: Authentication Bypass by Spoofing - This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
Total des modifications: 1 Dernière mise à jour: 5 months ago

> REFERENCES

https://github.com/getsentry/sentry/commit/0c67558ae7fe08738912d4c5233b53ead048d...
https://github.com/getsentry/sentry/pull/113720
https://github.com/getsentry/sentry/releases/tag/26.4.1
https://github.com/getsentry/sentry/security/advisories/GHSA-rcmw-7mc7-3rj7
« BACK_TO_HOME