CVE-2021-21615: jenkins project jenkins
CVSS: 5.3v3.1MediumModified
AliasesGHSA-qxp6-27gw-99cjBIT-jenkins-2021-21615
Published 26-01-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-21615 is a medium (CVSS 5.3) vulnerability in jenkins project jenkins. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.5% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (NVD)EPSS score
0.91%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 26-01-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Jenkins 2.275 and LTS 2.263.2 allows reading arbitrary files using the file browser for workspaces and archived artifacts due to a time-of-check to time-of-use (TOCTOU) race condition.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 2 agree
- OSV · MavenEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.91%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
+0.01 pp
From 0.90% on 21-09-2026
21-09-202621-10-2026
EPSS score0.91%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Jenkins1 product
- jenkins< 2.263.3 | < 2.276
Jenkins project1 product
- jenkins2.275 | LTS 2.263.2
Org.jenkins-ci.main1 product
- jenkins-core< 2.263.3 | ≥ 2.264, < 2.276
3 vendors · 3 products
References
3 links- www.openwall.com/lists/oss-security/2021/01/26/2Mailing ListX Refsource MLISTWEBThird Party Advisory
