https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 13:58:46 +0000 https://vulnerability.circl.lu/vuln/fkie_cve-2026-52824 <p>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.</p> <p>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.</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-52824 https://vulnerability.circl.lu/vuln/ghsa-jr9p-4h4j-6c58 <p><strong>Affected:</strong> Packagist: kimai/kimai</p> <p>### Summary</p> <p>The official Kimai Docker image ships with `APP_SECRET=change_this_to_something_unique` as the default environment variable. The Docker entrypoint does not override or validate this value. Any Kimai instance deployed using the Docker image without explicitly setting `APP_SECRET` runs with a publicly-known Symfony `kernel.secret`, enabling an unauthenticated attacker to forge HMAC-signed cookies and login links to take over any account including super_admin.</p> <p>### Details</p> <p>`Dockerfile:263` sets `ENV APP_SECRET=change_this_to_something_unique`. This value is consumed by `config/packages/framework.yaml:7` as `kernel.secret`, which Symfony uses to HMAC-sign:</p> <p>- The `KIMAI_REMEMBER` remember-me cookie - LoginLink signatures - Password reset URLs - CSRF tokens</p> <p>The `.docker/entrypoint.sh` does not check for or replace the default sentinel value. The bare-metal `.env.dist:38` ships the same default. No startup-time guard exists anywhere in the codebase that refuses to start when `APP_SECRET` equals the sentinel.</p> <p>User IDs are sequential integers starting from 1. The first super_admin account is almost always `id=1`. User IDs are visible in some URLs and API responses.</p> <p>*A PoC was provided, but removed for security reasons.*</p> <p>### Impact</p> <p>Any Kimai instance deployed via the official Docker image without overriding `APP_SECRET` can be compromised from the internet. An unauthenticated attacker who can reach the Kimai URL can forge authentication tokens and log in as any use…</p> <p><strong>Affected:</strong> Packagist: kimai/kimai</p> <p>### Summary</p> <p>The official Kimai Docker image ships with `APP_SECRET=change_this_to_something_unique` as the default environment variable. The Docker entrypoint does not override or validate this value. Any Kimai instance deployed using the Docker image without explicitly setting `APP_SECRET` runs with a publicly-known Symfony `kernel.secret`, enabling an unauthenticated attacker to forge HMAC-signed cookies and login links to take over any account including super_admin.</p> <p>### Details</p> <p>`Dockerfile:263` sets `ENV APP_SECRET=change_this_to_something_unique`. This value is consumed by `config/packages/framework.yaml:7` as `kernel.secret`, which Symfony uses to HMAC-sign:</p> <p>- The `KIMAI_REMEMBER` remember-me cookie - LoginLink signatures - Password reset URLs - CSRF tokens</p> <p>The `.docker/entrypoint.sh` does not check for or replace the default sentinel value. The bare-metal `.env.dist:38` ships the same default. No startup-time guard exists anywhere in the codebase that refuses to start when `APP_SECRET` equals the sentinel.</p> <p>User IDs are sequential integers starting from 1. The first super_admin account is almost always `id=1`. User IDs are visible in some URLs and API responses.</p> <p>*A PoC was provided, but removed for security reasons.*</p> <p>### Impact</p> <p>Any Kimai instance deployed via the official Docker image without overriding `APP_SECRET` can be compromised from the internet. An unauthenticated attacker who can reach the Kimai URL can forge authentication tokens and log in as any use…</p> https://vulnerability.circl.lu/vuln/ghsa-jr9p-4h4j-6c58