CVE-2021-21695

HIGH

Jenkins < 2.303.3 and < 2.319 - Improper Link Resolution Before File Access

Title source: llm

Description

FilePath#listFiles lists files outside directories that agents are allowed to access when following symbolic links in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.

References (2)

Core 2

Core References

Vendor Advisory x_refsource_confirm

https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2021/11/04/3

Scores

CVSS v3 8.8

EPSS 0.0053

EPSS Percentile 67.4%

Attack Vector NETWORK

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

Details

CWE

CWE-59

Status published

Products (3)

jenkins/jenkins < 2.303.3

jenkins/jenkins < 2.319

org.jenkins-ci.main/jenkins-core 0 - 2.303.3Maven

Published Nov 04, 2021

Tracked Since Feb 18, 2026