CVE-2026-25519OpenSlides is a free, web based presentation and assembly system for managing and projecting agenda, motions and elections of an assembly.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openslides openslides openslides:openslides | from 4.2.5 before 4.2.29 | NVD |
References
- https://github.com/OpenSlides/OpenSlides/releases/tag/4.2.29product, release-notes
- https://github.com/OpenSlides/OpenSlides/security/advisories/GHSA-vv4h-8wfc-pf8cpatch, vendor-advisory
- https://github.com/OpenSlides/openslides-auth-service/commit/70c1aa9f5e1db59ec120ecce98d1c1169350a4eepatch
- https://github.com/OpenSlides/openslides-auth-service/pull/889issue-tracking
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.