PyPi: Celery

CVE-2021-23727

Safety vulnerability ID: 43738

This vulnerability was reviewed by experts

The information on this page was manually curated by our Cybersecurity Intelligence Team.

Created at Dec 29, 2021 Updated at Dec 19, 2024
Scan your Python projects for vulnerabilities →

Advisory

Celery 5.2.2 includes a fix for CVE-2021-23727: Celery before 5.2.2. 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.

Affected package

celery

Latest version: 5.4.0

Distributed Task Queue.

Affected versions

Fixed versions

Vulnerability changelog

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. See CVE-2021-23727.


MISC:https://github.com/celery/celery/blob/master/Changelog.rst%23522: https://github.com/celery/celery/blob/master/Changelog.rst%23522
MISC:https://snyk.io/vuln/SNYK-PYTHON-CELERY-2314953: https://snyk.io/vuln/SNYK-PYTHON-CELERY-2314953

Resources

Use this package?

Scan your Python project for dependency vulnerabilities in two minutes

Scan your application

Severity Details

CVSS Base Score

HIGH 7.5

CVSS v3 Details

HIGH 7.5
Attack Vector (AV)
NETWORK
Attack Complexity (AC)
HIGH
Privileges Required (PR)
LOW
User Interaction (UI)
NONE
Scope (S)
UNCHANGED
Confidentiality Impact (C)
HIGH
Integrity Impact (I)
HIGH
Availability Availability (A)
HIGH

CVSS v2 Details

MEDIUM 6.0
Access Vector (AV)
NETWORK
Access Complexity (AC)
MEDIUM
Authentication (Au)
SINGLE
Confidentiality Impact (C)
PARTIAL
Integrity Impact (I)
PARTIAL
Availability Impact (A)
PARTIAL