[ CVE-2026-110604 · Published 14 Oct 2026 ]
Vulnerability in Michael R Sweet Mini-XML
CVSS 3.6
EPSS <1%No fix listed yet
[ Why it matters ]Priority signals
- Public proof-of-concept exploit exists (CISA SSVC)
[ Description ]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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c
- github.com/michaelrsweet/mxml/commit/367c7ddd3387f65e867d776216de274bcaa3dae1
- hackmd.io/@haind-pwn/mxml-strtod-locale-stack-overflow
- www.vulncheck.com/advisories/mini-xml-4.0.0-through-4.0.6-stack-out-of-bounds-write-via…
- hackmd.io/@haind-pwn/cve-2026-110604-mxml-strtod-locale-stack-overflow