CVE-2011-4356: Celeryproject Celery

Medium severity, CVSS 6.9. EPSS: 0.3% chance of exploitation in the next 30 days.

Celery 2.1 and 2.2 before 2.2.8, 2.3 before 2.3.4, and 2.4 before 2.4.4 changes the effective id but not the real id during processing of the --uid and --gid arguments to celerybeat, celeryd_detach, celeryd-multi, and celeryev, which allows local users to gain privileges via vectors involving crafted code that is executed by the worker process.

Affected products

• Celeryproject Celery: version 2.1.0 only; version 2.2.0 only; version 2.2.1 only; version 2.2.2 only; version 2.2.3 only; version 2.2.4 only; …

Published 2011-12-05. Last modified 2026-06-16.