CVE-2026-48921

Name: CVE-2026-48921
Creator: NVD / NIST
Published: 2026-05-27T15:16:31.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2026-48921 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Jenkins Pipeline: Groovy Libraries Plugin 797.v90ea_a_9b_e45a_0 and earlier does not prohibit symbolic links in shared libraries, allowing attackers able to control the content of a library used by a Pipeline job to read arbitrary files on the Jenkins controller filesystem.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

Jenkins Pipeline: Groovy Libraries Plugin 797.v90ea_a_9b_e45a_0 and earlier does not prohibit symbolic links in shared libraries, allowing attackers able to control the content of a library used by a Pipeline job to read arbitrary files on the Jenkins controller filesystem.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.30%

21.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Jenkins	Pipeline\	< 798.v5cc688825312

References

https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3727Vendor Advisory

Timeline

Published: May 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-48921?

How severe is CVE-2026-48921?

CVE-2026-48921 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2026-48921?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-48921?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST