CVE-2026-110604 Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
Attackers can trigger a stack out-of-bounds write in Mini-XML by supplying crafted XML with specific locale settings, potentially causing crashes or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-110604?
CVE-2026-110604 is a low-severity memory corruption vulnerability in Michael R Sweet Mini-XML, published on 14 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Mini-XML 4.0.0 through 4.0.6 contains an off-by-one stack out-of-bounds write in mxml_strtod() when the locale decimal point is not '.'. Attackers can supply XML with a 63-digit REAL value followed by '.' to write a NUL byte past the 64-byte stack buffer, corrupting stack memory or crashing the process.
Weakness: CWE-193
Which versions are affected by CVE-2026-110604?
How do I fix CVE-2026-110604?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-110604 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110604 exists.
Sources
Also known as DEBIAN-CVE-2026-110604, GHSA-pc2v-ppxx-vfq5, UBUNTU-CVE-2026-110604.