CVE-2026-112049: Vita3K before build 4187 Path Traversal via VPK Package Installation

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-18 · updated 2026-10-22
Weakness: CWE-22

Description

Vita3K before build 4187 contains a path traversal (zip slip) vulnerability in install_archive_content() that allows attackers to write files outside the install directory via crafted .vpk archives. Attackers can embed '..' segments or absolute paths in zip entry names to write attacker-controlled files anywhere writable by Vita3K, potentially enabling host code execution.

Affected products

Vita3K: before 4187 — fixed in 4187

How to fix

Upgrade to a fixed version: Vita3K 4187. Check the vendor advisory for mitigations.

References

https://github.com/Vita3K/Vita3K/blob/f0273e4cd9b860ea77c44c73d9f5c5b1ed5fa8ab/vita3k/interface.cpp#L219-L234
https://github.com/Vita3K/Vita3K/commit/55f88cd17a78ce8af7d753c7c4eb2f709f7d6dbc
https://github.com/Vita3K/Vita3K/issues/4254
https://www.vulncheck.com/advisories/vita3k-before-build-4187-path-traversal-via-vpk-package-installation

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