High7.5Red Hat & Ubuntu Linux
Denial of Service via resource leak from unsolicited SSH responses
CVE-2026-39830 Published May 22, 2026
CVE-2026-39830
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Denial of Service via resource leak from unsolicited SSH responses. Red Hat rates this important (CVSS 7.5). Weakness: CWE-772. Affected package(s): buildah. Resolved in Red Hat advisory RHSA-2026:29455 — update the affected packages (`sudo dnf update`).
Affected versions
- buildah-2:1.43.1-2.el9_8
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Fixed versions
- RHSA-2026:29455
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:29455 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
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