CVE Watch29 sept 2026

CVE-2026-101878

Bitwarden Server 2025.6.0 before 2026.5.0 declares the @ExternalId parameter of the User_ReadBySsoUserOrganizationIdExternalId stored proced

CVSS

7.5

Alto

EPSS

0.3%

p17

KEV

—

Exploit Today

0-100

Publicado: 29 sept 2026 · Última mod.: 29 sept 2026 · CWE-303

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-09-292026-10-25

Descripción técnica

Bitwarden Server 2025.6.0 before 2026.5.0 declares the @ExternalId parameter of the User_ReadBySsoUserOrganizationIdExternalId stored procedure as NVARCHAR(50) while the column it queries stores NVARCHAR(300), silently truncating the SSO login identifier on SQL Server deployments and allowing a user whose identity-provider identifier begins with another organization member's full 50-character identifier to authenticate as that member and obtain a victim-scoped access token.

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