CVE-2021-23727 is a critical vulnerability affecting Celery versions prior to 5.2.2, where the system defaults to trusting messages and metadata in backends. This allows an attacker who can manipulate backend metadata to trigger a stored command injection during deserialization, potentially leading to full system compromise. With a CVSS score of 7.5 (High), this vulnerability requires low privileges and no user interaction, but has high attack complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.2.2CPE matchmatch criteria | cpe:2.3:a:celeryproject:celery:*:*:*:*:*:python:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:7.0:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.