High7.5Vendor: MediumRed Hat & Ubuntu Linux
Denial of Service and buffer overflow via crafted ECDH ciphertext
CVE-2026-41989 Published Apr 23, 2026
CVE-2026-41989
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Denial of Service and buffer overflow via crafted ECDH ciphertext. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-131. Affected package(s): libgcrypt-main. Resolved in Red Hat advisory RHSA-2026:8466 — update the affected packages (`sudo dnf update`).
Affected versions
- libgcrypt-main-1.12.2-1.hum1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:8466
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-2026:8466 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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