Critical9.1Vendor: HighRed Hat & Ubuntu Linux
Security bypass due to ineffective default web security
CVE-2026-40976 Published Apr 27, 2026
CVE-2026-40976
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Security bypass due to ineffective default web security. Red Hat rates this important (CVSS 9.1). Weakness: CWE-305. 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 2 hours ago·verify at source
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