CVE-2026-115933: critical vulnerability in GitroomHQ postiz-app
Forged signed tokens let any registered user take over other users and organizations
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.9epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
GitroomHQ · postiz-appRelated CVEs — GitroomHQ postiz-app
In the same product, most dangerous first.
CVE-2026-94456CRITICALUnauthenticated recovery of the Math.random() state behind OAuth tokens, authorization codes, client secrets and organization API keysEPSS 0.5%CVE-2026-115931CRITICALArbitrary file read and backend crash through unrestricted provider method callsEPSS 0.5%CVE-2026-115932CRITICALPath traversal in post media lets any registered user read server filesEPSS 0.4%CVE-2026-19127MEDIUMInsufficient verification of lifetime-deal redemption codes allows forgery of permanent paid subscriptionsEPSS 0.3%CVE-2026-107761MEDIUMChannel tokens and organization API key exposed in API responsesEPSS 0.3%CVE-2026-94455HIGHUnauthenticated /enterprise/create-user mints lifetime top-tier organizations and discloses their API keyEPSS 0.3%