CVE-2026-25519

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 v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/OpenSlides/OpenSlides/releases/tag/4.2.29	Product Release Notes
https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-vv4h-8wfc-pf8c	Patch Vendor Advisory
https://github.com/OpenSlides/openslides-auth-service/commit/70c1aa9f5e1db59ec120ecce98d1c1169350a4ee	Patch
https://github.com/OpenSlides/openslides-auth-service/pull/889	Issue Tracking

Configurations

Configuration 1 (hide)

cpe:2.3:a:openslides:openslides:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-04 21:16

Updated : 2026-06-17 10:24

NVD link : CVE-2026-25519

Mitre link : CVE-2026-25519

CVE.ORG link : CVE-2026-25519

JSON object : View

Products Affected

openslides

openslides

CWE

CWE-284

Improper Access Control

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