Medium5.4Red Hat & Ubuntu Linux
Unauthorized access due to use-after-return vulnerability in DNS query handling
CVE-2026-3591 Published Mar 25, 2026
CVE-2026-3591
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Unauthorized access due to use-after-return vulnerability in DNS query handling. Red Hat rates this moderate (CVSS 5.4). Weakness: CWE-825. Affected package(s): bind-main. Resolved in Red Hat advisory RHSA-2026:6935 — update the affected packages (`sudo dnf update`).
Affected versions
- bind-main-9.18.48-1.hum1
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:6935
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:6935 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.