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CVE-2026-52824

Kimai: Default APP_SECRET in Docker Image Enables Cookie Forgery and Account Takeover PUBLISHED

Description (CNA)

Kimai is an open-source time tracking application. Prior to 2.58.0, the official Docker image sets APP_SECRET to the public value change_this_to_something_unique in Dockerfile, and .docker/entrypoint.sh neither replaces nor rejects that value before Symfony uses it as kernel.secret. An unauthenticated attacker who reaches a deployment that did not override APP_SECRET, knows a username, correctly guesses the account ID associated with that username, and targets an account without active two-factor authentication can forge HMAC-protected authentication artifacts, including KIMAI_REMEMBER cookies and login links, to access the account without its password. The updated entrypoint generates and persists a random secret when no safe operator-provided value exists. This issue is fixed in version 2.58.0.

Affected (CNA)

Vendor / productVersions
kimai / kimaiaffected < 2.58.0

CWE

CWE-1188

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.