CVE-2021-21697
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allows any agent to read and write the contents of any build directory stored in Jenkins with very few restrictions.
02 Description
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allows any agent to read and write the contents of any build directory stored in Jenkins with very few restrictions.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.60% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 75.3% of scored records. A rank, not a probability.
- NVD base score
- 9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-11-04 16:30Z4 YR AGO
- Last updated
- 2024-08-03 18:23Z2 YR AGO
- Reserved
- 2021-01-04
- Assigning CNA
- jenkins
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
- Data version
- 5.1
- Document digest
- d0125b56a032084d3f2a7dd489b7fe9ea6105c35f1079b64aa5fbecfbf0d5339
05 Affected products
06 References
- www.jenkins.iohttps://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2428
- www.openwall.com[oss-security] 20211104 Multiple vulnerabilities in Jenkins and Jenkins pluginshttp://www.openwall.com/lists/oss-security/2021/11/04/3
07 Fixed in
Arch Linux
- jenkins Fixed in 2.319-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.