What is the CVSS score of CVE-2021-23727?

CVE-2021-23727 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.9%.

Is there a public PoC exploit available for CVE-2021-23727?

Yes, a public proof-of-concept exploit is available for CVE-2021-23727. Prioritise patching immediately. EPSS: 3.9%.

Is there a patch available for CVE-2021-23727?

Yes, a patch is available for CVE-2021-23727. Update the affected software to the latest version immediately.

Celery CVE-2021-23727

HIGH

Command Injection (CWE-77)

2021-12-29 report@snyk.io

Command Injection Celery Extra Packages For Enterprise Linux Fedora

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 29, 2021 - 17:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

12 pypi packages depend on celery (9 direct, 3 indirect)

Ecosystem-wide dependent count for version 5.2.2.

DescriptionNVD

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.

AnalysisAI

This affects the package celery before 5.2.2. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. 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. Affected products include: Celeryproject Celery, Fedoraproject Extra Packages For Enterprise Linux, Fedoraproject Fedora. Version information: before 5.2.2..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.