CVE-2026-85456

MOOS-IvP through 24.8.1 fails to properly validate variable names extracted from alog files in the SplitHandler, allowing attackers to write files outside the split directory. Attackers can supply crafted alog files with backslash sequences in variable names to escape the output directory and append to arbitrary files on Windows systems.

CVSS 4.0

6.8CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-09-03

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• mit:moos-ivp

References

• https://github.com/moos-ivp/moos-ivp
• https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/lib_logutils/SplitHandler.cpp#L189
• https://github.com/moos-ivp/moos-ivp/commit/6f0619e905b325d6b88f76425673045c6e4f6f94
• https://github.com/moos-ivp/moos-ivp/pull/137
• https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-alog-splitting-path-traversal-on-windows

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