CVE-2026-96280

7.5 HIGHpublic exploit available

Published 2026-09-27 · Updated 2026-09-27

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses

CWE-197

Public exploit & PoC references

https://github.com/flatpak/flatpak/security/advisories/GHSA-jr92-2v97-wgvc

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

Related CVEs

Related by shared AI tags and CWE weakness class. Browse the full archive.