CVE-2026-103227 GPAC DASH Client dash_client.c gf_dash_resolve_url buffer overflow

Medium 5.3 Published Updated

A buffer overflow in the GPAC DASH Client allows remote attackers to execute arbitrary code or cause denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-103227?

CVE-2026-103227 is a medium-severity memory corruption vulnerability in GPAC, published on 30 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A weakness has been identified in GPAC up to 26.07.0. Affected by this issue is the function gf_dash_resolve_url of the file src/media_tools/dash_client.c of the component DASH Client. This manipulation causes buffer overflow. The attack is possible to be carried out remotely. Upgrading to version abi-16.26 can resolve this issue. Patch name: 4c8e26f278ff63eec57968f7bc696f604bb0cffd. It is recommended to upgrade the affected component.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-103227?

How do I fix CVE-2026-103227?

No fix has been published for CVE-2026-103227 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-103227 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-103227 exists.

Sources

Also known as GHSA-w83x-f8q3-9m4w, UBUNTU-CVE-2026-103227.

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