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CVE-2021-23727

Published: 29 December 2021

This affects the package celery before 5.2.2. It by default trusts the messages and metadata stored in backends (result stores). When reading task metadata from the backend, the data is deserialized. Given that an attacker can gain access to, or somehow manipulate the metadata within a celery backend, they could trigger a stored command injection vulnerability and potentially gain further access to the system.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
celery
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

trusty Needs triage

upstream
Released (5.2.2)
hirsute Ignored
(end of life)
impish Ignored
(end of life)
xenial Needs triage

jammy Not vulnerable
(5.2.3-1)
kinetic Not vulnerable
(5.2.3-1)
lunar Not vulnerable
(5.2.3-1)
mantic Not vulnerable
(5.2.3-1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H