CVE-2026-25519

OpenSlides has incorrect access control vulnerability in authentication service

CVSS 8.1 HIGHEPSS 0.5%CWE-284

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 8.1EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

04 feb 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

OpenSlides is a free, web based presentation and assembly system for managing and projecting agenda, motions and elections of an assembly. Prior to version 4.2.29, OpenSlides supports local logins with username and password or an optionally configurable single sign on with SAML via an external IDP. For users synced to OpenSlides via an external IDP, there is an incorrect access control regarding the local login of these users. Users can successfully login using the local login form and the OpenSlides username of a SAML user and a trivial password. This password is valid for all SAML users. This issue has been patched in version 4.2.29.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Productos afectados

OpenSlides · OpenSlides

Referencias

https://github.com/OpenSlides/openslides-auth-service/commit/70c1aa9f5e1db59ec120ecce98d1c1169350a4ee https://github.com/OpenSlides/openslides-auth-service/pull/889 https://github.com/OpenSlides/OpenSlides/releases/tag/4.2.29 https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-vv4h-8wfc-pf8c