CVEvulnerability

CVE-2026-96280

7.5 HIGH Published 2026-09-27 Modified 2026-10-27 Official page ↗
Status
Awaiting Analysis
Published
2026-09-27
Last modified
2026-10-27
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-197

Description

The OCI delta stream parser read sizes as guint64 but passed them to GLib I/O and allocation functions expecting gsize (32 bits on 32-bit systems), causing undersized allocations while subsequent operations use the original 64-bit size, leading to heap buffer overflows. An attacker controlling an OCI registry can craft a delta stream that triggers this during flatpak install/update, potentially achieving code execution on 32-bit systems.

Related

Weakness · CWE (1)

  • CWE-197 Numeric Truncation Error weakness

References