CVE-2011-4356

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-12-05 · updated 2026-06-16
Weakness: CWE-264

Description

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: 2.1.0, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4 (+11)

References

http://secunia.com/advisories/46973
http://www.securityfocus.com/bid/50825
https://github.com/ask/celery/blob/master/docs/sec/CELERYSA-0001.txt
https://github.com/ask/celery/pull/544
http://secunia.com/advisories/46973
http://www.securityfocus.com/bid/50825
https://github.com/ask/celery/blob/master/docs/sec/CELERYSA-0001.txt
https://github.com/ask/celery/pull/544

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