CVE-2026-14765Epic Games Unreal Engine Insecure Default URL Scheme Allowance in LaunchURL
Updated under an hour ago ()
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It affects Epic Games Unreal Engine. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.39%, higher than 31% of scored CVEs.
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Epic Games Unreal Engine versions up to and including 5.8.0 ship with an insecure default configuration for the LaunchURL Blueprint node (UKismetSystemLibrary::LaunchURL). The URL scheme filter (FURLRequestFilter) is empty by default, which permits all URL schemes. On Windows, this results in a call to ShellExecuteW() with the open verb, so a supplied file:/// URI causes the referenced file to be executed. Any Unreal Engine game that loads user-generated content containing Blueprints is vulnerable to command execution via a malicious local file or a remote file on a WebDAV share. This is an instance of CWE-1188 (Initialization of a Resource with an Insecure Default).
- CVSS
- 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-1188
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.39% (percentile 31)
- Assigned by
- AHA
- NVD analysis
- Deferred
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Epic Games Unreal Engine epic_games:unreal_engine (from the name) | through 5.8.0 | CNA record |
References
- https://khaelkugler.com/blogs/meccha_chameleon.htmlrelated
- https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000001011111111101111111111110000000000000000000000000000000000000000000000000000001011third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.