CVE-2021-21646 is a high-severity vulnerability affecting Jenkins Templating Engine Plugin versions 2.1 and earlier, allowing authenticated attackers with Job/Configure permissions to execute arbitrary code on the Jenkins controller. With a CVSS score of 8.8, this flaw presents a significant risk due to its low attack complexity and complete compromise potential (confidentiality, integrity, availability). While no public exploits or active exploitation have been observed, and community discussion is minimal, the vulnerability remains a critical concern for affected Jenkins environments.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.1CPE matchmatch criteria | cpe:2.3:a:jenkins:templating_engine:*:*:*:*:*:jenkins:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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.