CVE-2026-86515 vgmstream txtp txtp_parser.c add_entry resource consumption
Remote attackers can cause resource consumption and denial of service in vgmstream by manipulating range arguments in txtp files.
- 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-2026-86515?
CVE-2026-86515 is a medium-severity denial of service vulnerability in vgmstream, published on 8 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 security vulnerability has been detected in vgmstream up to r2117. Impacted is the function add_entry of the file src/meta/txtp_parser.c of the component txtp. Such manipulation of the argument range_start/range_end leads to resource consumption. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The name of the patch is 4b6a02dd1aff6428255db912563d77d4cb0a143e. It is advisable to implement a patch to correct this issue.
Which versions are affected by CVE-2026-86515?
How do I fix CVE-2026-86515?
No fix has been published for CVE-2026-86515 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-86515 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86515 exists.
Sources
Also known as GHSA-rvx9-668h-q594.