CVE Watch12 oct 2026

CVE-2026-96280

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 sy

CVSS

7.5

Alto

EPSS

0.4%

p33

KEV

—

Exploit Today

0-100

Publicado: 27 sept 2026 · Última mod.: 12 oct 2026 · CWE-197

EPSS · 30d

0.4%EPSS · 30 días0.7%

2026-09-282026-10-25

Descripción técnica

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.

Referencias oficiales

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