CVE-2026-115933
Forged signed tokens let any registered user take over other users and organizations
At a glance
- Source
- NVD
- EPSS
- EPSS 0.25 % · percentile 16 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- postiz
- NVD status
- Deferred
Description
Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the result where the requesting user can read it back. A user could therefore obtain a validly signed token containing any claims they choose, which the application accepts as a session, as an organization invitation with a chosen role, as a password reset or as an enterprise provisioning token. A second, narrower route that creates team invitations signs extra fields from the request body in the same way.
Weaknesses (CWE)
- CWE-290 — Authentication Bypass by Spoofing
- CWE-345 — Insufficient Verification of Data Authenticity
- CWE-915 — Improperly Controlled Modification of Dynamically-Determined Object Attributes
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | postiz |
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · 4cdc9741-f887-419a-a2fd-acbbd2729276 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-109300
- GCVE · GCVE-0-2026-115933
Affected products
| Product | Versions |
|---|---|
| GitroomHQ · postiz-app | affected 2.15.0 < 2.25.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |