6.5

CVE-2021-21623: jenkins project jenkins matrix authorization strategy plugin Incorrect Authorization

CVSS: 6.5v3.1MediumModified
AliasesGHSA-96jw-3xw4-mq9p
Published 18-03-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21623 is a medium (CVSS 6.5) Incorrect Authorization vulnerability in jenkins project jenkins matrix authorization strategy plugin. EPSS estimates a 1.01% chance of exploitation in the next 30 days, higher than 62.6% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.01%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2021:2437

Timeline

  1. 18-03-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

An incorrect permission check in Jenkins Matrix Authorization Strategy Plugin 2.6.5 and earlier allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.01%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

0.00 pp

From 1.01% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.01%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Jenkins1 product
Jenkins project1 product
Org.jenkins-ci.plugins1 product
  • matrix-auth< 2.6.6

3 vendors · 3 products

References

5 links