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PYSEC-2022-42973

Quick fix

PYSEC-2022-42973 — flower: upgrade to the fixed version with the command below.

pip install --upgrade 'flower>=1.2.0'

Details

Flower, a web UI for the Celery Python RPC framework, all versions as of 05-02-2022 is vulnerable to an OAuth authentication bypass. An attacker could then access the Flower API to discover and invoke arbitrary Celery RPC calls or deny service by shutting down Celery task nodes.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/flower

Introduced in: 0Fixed in: 1.2.0

Fixpip install --upgrade 'flower>=1.2.0'

References

https://tprynn.github.io/2022/05/26/flower-vulns.html[EVIDENCE]
https://tprynn.github.io/2022/05/26/flower-vulns.html[WEB]
http://githubcommherflower.com[WEB]
https://github.com/mher/flower/issues/1217[REPORT]
https://github.com/advisories/GHSA-q4qm-xhf9-4p8f[ADVISORY]