High [CVE-2026-48864] Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data
This high-severity Red Hat Linux advisory covers CVE-2026-48864 affecting Red Hat Hardened Images, Red Hat OpenShift Container Platform 4, Red Hat Update Infrastructure 5.
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Summary
Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious.solv page data. Red Hat rates this moderate (CVSS 7.8).
Weakness: CWE-787. Affected package(s): libsolv, libsolv-main.
Resolved in Red Hat advisory RHSA-2026:28236 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Hardened Images; Red Hat OpenShift Container Platform 4; Red Hat Update Infrastructure 5; Red Hat Discovery 2; and 13 more.
- libsolv-0:0.7.33-5.el10_2
- libsolv-main-0.7.38-2.hum1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:28236
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:28236 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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