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CVE-2021-21626

15
FAUCET Score

CVE-2021-21626 impacts Jenkins Warnings Next Generation Plugin versions 8.4.4 and earlier, allowing authenticated attackers with Item/Read permissions to validate file patterns against workspace contents without requiring higher Item/Workspace or Item/Configure permissions. This vulnerability has a CVSS score of 4.3 (MEDIUM), indicating a low attack complexity and no confidentiality, integrity, or availability impact beyond information disclosure of file pattern matches. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.4.4CPE matchmatch criteria
cpe:2.3:a:jenkins:warnings_next_generation:*:*:*:*:*:jenkins:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 67th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: io.jenkins.plugins:warnings-ngFixed in: 8.5.0
jenkinsvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

mavenGHSA-7j3x-xm4j-jfj7medium

Missing permission checks in Jenkins Warnings Next Generation Plugin allow listing workspace contents

May 24, 2022

References

jenkins.io / security/advisory/2021-03-18
Vendor Advisory
openwall.com / lists/oss-security/2021/03/18/5
Third Party Advisory