CVE-2026-110604
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
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.
- Record
CVE-2026-110604- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 3.6 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L - Weakness
- CWE-193
- Updated
- 2026-11-02
EUVDEUVD-2026-101232
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.
- Record
EUVD-2026-101232- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-pc2v-ppxx-vfq5
Mini-XML 4.0.0 through 4.0.6 contains an off-by-one stack out-of-bounds write in mxml_strtod()...
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.
- Record
GHSA-pc2v-ppxx-vfq5- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 3.6 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L - Weakness
- CWE-193
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-110604- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 3.6 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L - Weakness
- CWE-193
- Updated
- 2026-11-02
OSV
Mini-XML 4.0.0 through 4.0.6 Stack Out-of-Bounds Write via mxml_strtod()
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.
- Record
CVE-2026-110604- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N - Weakness
- CWE-193
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-110604
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.
- Record
DEBIAN-CVE-2026-110604- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-110604
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.
- Record
UBUNTU-CVE-2026-110604- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 3.6 Low
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mxmlDebian:12 |
All versions, plus listed versions 3.3.1-14.0.1-14.0.2-14.0.3-14.0.4-1 Show 7 moreShow less4.0.4-34.0.4-44.0.4-54.0.4-64.0.5-14.0.6-24.0.6-3 |
None known |
mxmlDebian:13 |
All versions, plus listed versions 3.3.1-13.3.1-1+deb13u13.3.1-1+deb13u1~deb12u14.0.1-14.0.2-1 Show 9 moreShow less4.0.3-14.0.4-14.0.4-34.0.4-44.0.4-54.0.4-64.0.5-14.0.6-24.0.6-3 |
None known |
mxmlDebian:14 |
before 4.0.6-3, plus listed versions 3.3.1-14.0.1-14.0.2-14.0.3-14.0.4-1 Show 6 moreShow less4.0.4-34.0.4-44.0.4-54.0.4-64.0.5-14.0.6-2 |
4.0.6-3 |
mxmlUbuntu:16.04:LTS |
All versions, plus listed versions 2.7-12.9-0ubuntu12.9-0ubuntu2 |
None known |
mxmlUbuntu:18.04:LTS |
All versions, plus listed versions 2.10-1 |
None known |
mxmlUbuntu:20.04:LTS |
All versions, plus listed versions 2.12-23.1-1 |
None known |
mxmlUbuntu:22.04:LTS |
All versions, plus listed versions 3.2-13.3-1 |
None known |
mxmlUbuntu:24.04:LTS |
All versions, plus listed versions 3.3.1-13.3.1-1build1 |
None known |
mxmlUbuntu:26.10 |
All versions, plus listed versions 3.3.1-1build24.0.4-6 |
None known |
mxmlUbuntu:26.04:LTS |
All versions, plus listed versions 3.3.1-1build13.3.1-1build2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-110604 is a low vulnerability (CVSS 2.0) in Michael R Sweet Mini-xml, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. Fixed in mxml 4.0.6-3.
References
hackmd.io/@haind-pwn/mxml-strtod-locale-stack-overflow
github.com/michaelrsweet/mxml/blob/v4.0.6/mxml-file.c
vulncheck.com/advisories/mini-xml-4.0.0-through-4.0.6-stack-out-of-bounds-write-via-mxml-strtod
nvd.nist.gov/vuln/detail/CVE-2026-110604