# CVE-2026-85456: MOOS-IvP path traversal in SplitHandler variable validation

Source: https://junglewise.ai/threats/cve-2026-85456-moos-ivp-path-traversal-in-splithandler-variable-validation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-03. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-85456 · Severity: medium · CVSS 5.5 · Published 2026-09-03

MOOS-IvP is an autonomy software suite used for controlling autonomous vehicles, particularly marine robots. A vulnerability in the SplitHandler component fails to properly validate variable names when processing log files, allowing attackers to write files outside the intended directory by using path traversal sequences. On Windows systems, this could allow arbitrary file writes if an attacker-controlled log file is processed.

Technologies: [MOOS-IvP](https://junglewise.ai/threats/technologies/moos-ivp). Vendors: [MOOS-IvP](https://junglewise.ai/threats/vendors/moos-ivp).

## Quick answers

**Is CVE-2026-85456 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-85456 being exploited in the wild.

**How severe is CVE-2026-85456?** Medium severity, with a CVSS score of 5.5, published 3 September 2026.

**Which products and versions are affected?** MOOS-IvP through 24.8.1.

**Is there a fix for CVE-2026-85456?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-85456 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-85456?** Check whether you run MOOS-IvP at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a path traversal flaw in the SplitHandler component of MOOS-IvP versions through 24.8.1. The SplitHandler processes alog files but fails to validate variable names before using them to construct file paths. Attackers can craft alog files containing backslash sequences (on Windows) in variable names to escape the designated split output directory. The attack requires the victim to process a malicious alog file with the SplitHandler tool. Successful exploitation allows writing or appending to arbitrary files on the system with the privileges of the MOOS-IvP process, potentially affecting system integrity and availability.

## Affected products

- MOOS-IvP MOOS-IvP through 24.8.1

## Timeline

- 2026-09-03: disclosed

## References

- [https://github.com/moos-ivp/moos-ivp](https://github.com/moos-ivp/moos-ivp)
- [https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/lib_logutils/SplitHandler.cpp](https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/lib_logutils/SplitHandler.cpp)

## Related threats

- [MOOS-IvP quadratic processing vulnerability in uFldNodeComms](https://junglewise.ai/threats/cve-2026-85446-moos-ivp-quadratic-processing-vulnerability-in-ufldnodecomms)
- [MOOS-IvP Demuxer denial of service via unbounded memory allocation](https://junglewise.ai/threats/cve-2026-85445-moos-ivp-demuxer-denial-of-service-via-unbounded-memory)
- [MOOS-IvP buffer over-read in string parsing functions](https://junglewise.ai/threats/cve-2026-85444-moos-ivp-buffer-over-read-in-string-parsing-functions)
- [MOOS-IvP alogsplit command injection in handlePreCheckSplitDir](https://junglewise.ai/threats/cve-2026-85439-moos-ivp-alogsplit-command-injection-in-handleprechecksplitdir)
- [MOOS-IvP buffer overflow in StringToIvPFunction](https://junglewise.ai/threats/cve-2026-85438-moos-ivp-buffer-overflow-in-stringtoivpfunction)