Is CVE-2026-48921 actively exploited?

No active exploitation of CVE-2026-48921 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-48921 be exploited remotely?

Yes. CVE-2026-48921 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-48921?

CVE-2026-48921 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-48921

CWE-59Published: May 27, 2026· Updated: May 28, 2026

7.5

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-48921 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.5.