As cited
Copy frozen at (site build).
vulnerabilities
2026-005: High Vulnerability in the Linux Kernel ("Copy Fail")
CVE-2026-31431, a high-severity local privilege escalation vulnerability in the Linux kernel named "Copy Fail", was publicly disclosed on April 29, 2026, affecting all mainstream Linux distributions with kernels built since 2017. A public proof-of-concept exploit is available, and while the mainline fix was committed on April 1, 2026, no distribution had shipped patched kernel packages as of the advisory date. CERT-EU recommends immediate interim mitigation, with priority given to Kubernetes nodes and CI/CD runners handling untrusted workloads.
Why it matters: Linux administrators and DevOps teams must prioritize patching or mitigating this actively exploited local privilege escalation across all systems, especially containerized and CI/CD infrastructure exposed to untrusted code.
- Source published
- First seen by Cybersecurity Tracker
Source attribution
Correction
Correction recorded as of .
vulnerabilities
2026-005: High Vulnerability in the Linux Kernel ("Copy Fail")
CVE-2026-31431, a high-severity local privilege escalation vulnerability in the Linux kernel named "Copy Fail", was publicly disclosed on April 29, 2026, affecting all mainstream Linux distributions with kernels built since 2017. A public proof-of-concept exploit is available, and while the mainline fix was committed on April 1, 2026, no distribution had shipped patched kernel packages as of the advisory date. CERT-EU recommends immediate interim mitigation, with priority given to Kubernetes nodes and CI/CD runners handling untrusted workloads.
Why it matters: Linux administrators and DevOps teams must prioritize patching or mitigating this actively exploited local privilege escalation across all systems, especially containerized and CI/CD infrastructure exposed to untrusted code.
- Source published
- First seen by Cybersecurity Tracker