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CVE-2021-21682

MEDIUM
4.3
CVSS Score
Published: October 6, 2021 at 10:10 PM UTC
Updated: June 17, 2026 at 03:35 AM UTC
1 product affected across 1 vendorJenkins· also runs on 1 platform

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Severity
MEDIUM4.3
Exploit prediction
EPSS 1.0%

Description

Jenkins 2.314 and earlier, LTS 2.303.1 and earlier accepts names of jobs and other entities with a trailing dot character, potentially replacing the configuration and data of other entities on Windows.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Jenkins· Jenkinsjenkins-plugin
95%
v ≤ 2.303.1v ≤ 2.314v ≤ LTS 2.303.1
microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/10/06/1
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2424

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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