Is CVE-2026-27100 actively exploited?

No active exploitation of CVE-2026-27100 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27100 be exploited remotely?

Yes. CVE-2026-27100 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27100?

CVE-2026-27100 has a CVSS score of 4.3 (MEDIUM) and an EPSS exploitation probability of 0.12%.

HOME VULNERABILITIESCVE-2026-27100

MEDIUM

CVE-2026-27100

CWE-200Published: February 18, 2026· Updated: Feb 20, 2026

4.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.5th

Official Description

Jenkins 2.550 and earlier, LTS 2.541.1 and earlier accepts Run Parameter values that refer to builds the user submitting the build does not have access to, allowing attackers with Item/Build and Item/Configure permission to obtain information about the existence of jobs, the existence of builds, and if a specified build exists, its display name.

NVD Source

Technical Analysis

CVE-2026-27100 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.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.