CVE-2026-48864: opensuse libsolv Out-of-bounds Write

Vulnerability summary

CVE-2026-48864 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in opensuse libsolv. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 26-05-2026
   PublishedVulnerability first disclosed.
2. 14-10-2026
   Last modifiedVulnerability information updated.

Description

A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.