Is CVE-2026-42603 actively exploited?

No active exploitation of CVE-2026-42603 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-42603 be exploited remotely?

Yes. CVE-2026-42603 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-42603?

CVE-2026-42603 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2026-42603

HIGH

CVE-2026-42603

CWE-94Published: May 11, 2026· Updated: May 13, 2026

8.8

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.9th

Official Description

OWASP BLT is a QA testing and vulnerability disclosure platform that encompasses websites, apps, git repositories, and more. Prior to 2.1.2, .github/workflows/pre-commit-fix.yaml uses pull_request_target (privileged trigger) but checks out and executes code directly from the attacker's fork, enabling RCE with write permissions. This vulnerability is fixed in 2.1.2.

NVD Source

Technical Analysis

CVE-2026-42603 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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 8.8.