High7.5Red Hat & Ubuntu Linux
use-after-free in unblock client flow may allow remote code execution
CVE-2026-23479 Published May 5, 2026
CVE-2026-23479
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
use-after-free in unblock client flow may allow remote code execution. Red Hat rates this important (CVSS 7.5). Weakness: CWE-416. Affected package(s): redis:7, valkey. Resolved in Red Hat advisory RHSA-2026:26540 — update the affected packages (`sudo dnf update`).
Affected versions
- redis:7-9080020260521083756.9
- valkey-0:8.0.9-1.el10_2
- redis:7-9060020260602115714.9
- valkey-0:8.0.9-1.el10_0
- valkey-0:8.0.9-1.el9_8
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:26540
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:26540 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 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.