CVE-2026-42427

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 8.3% of scored records. A rank, not a probability.

NVD base score

5.8 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-28 18:10Z6 MO AGO

Last updated

2026-04-29 15:10Z6 MO AGO

Reserved

2026-04-27

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-184Incomplete List of Disallowed InputsBase

Data version

5.2

Document digest

8ea2e71ca3a28acffed5642ed0cce4f9e879e513fca707d41aa017bb0af43fdf

• github.comGitHub Security Advisory (GHSA-7437-7hg8-frrw)https://github.com/openclaw/openclaw/security/advisories/GHSA-7437-7hg8-frrwvendor-advisory
• github.comPatch Commithttps://github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5patch
• www.vulncheck.comVulnCheck Advisory: OpenClaw < 2026.4.8 - Remote Code Execution via Build Tool Environment Variable Injectionhttps://www.vulncheck.com/advisories/openclaw-remote-code-execution-via-build-tool-environment-variable-injectionthird-party-advisory