Critical9.1Vendor: HighRed Hat & Ubuntu Linux
Arbitrary code execution via specially crafted certificate
CVE-2026-42327 Published May 14, 2026
CVE-2026-42327
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Arbitrary code execution via specially crafted certificate. Red Hat rates this important (CVSS 9.1). Weakness: CWE-475. No fix erratum has been published yet; monitor the Red Hat CVE page and apply the RHSA when released.
Mitigation checklist
Recommended fix / mitigation
- Red Hat rates this important; a fix erratum may not be out yet — apply the RHSA as soon as it publishes.
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
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