CVE-2026-79515 Denial of service in n/a
Attackers can cause a Denial of Service by sending a crafted TTF file to applications using the stb TrueType library.
- 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-2026-79515?
CVE-2026-79515 is a medium-severity denial of service vulnerability in n/a, published on 9 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
An out-of-bounds read in the stbtt_GetGlyphShape component of nothings stb commit 31c1ad3 allows attackers to cause a Denial of Service (DoS) via sending a crafted TTF file.
Weakness: CWE-125
Which versions are affected by CVE-2026-79515?
How do I fix CVE-2026-79515?
No fix has been published for CVE-2026-79515 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-2026-79515 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-79515 exists.
Sources
Also known as DEBIAN-CVE-2026-79515, GHSA-fcr4-8hv6-4gw2, UBUNTU-CVE-2026-79515.