CVE-2026-115931: critical vulnerability in GitroomHQ postiz-app
Arbitrary file read and backend crash through unrestricted provider method calls
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.9epss 0.5%
Postiz lets a signed-in user ask the backend to run a function on one of their connected channels. The backend did not restrict which functions can be requested, so a user could call internal helper functions that were never meant to be reachable from the web interface.
One of those helpers reads a file from the server's disk. A user who connects a channel whose stored token is a file path can have the backend return the contents of any file it can read, including its environment, which holds the secret used to sign login sessions, the database address and the credentials of connected services. Another helper makes the backend process exit with a single request. Self-registration is open by default, so no existing account and no action by another user is needed.
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-2026-115932CRITICALPath 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%CVE-2026-115933CRITICALForged signed tokens let any registered user take over other users and organizationsEPSS 0.2%