CVE-2026-88937 knowns through 0.33.0 Path Traversal via Template Engine
Attackers can exploit path traversal in the template engine to read/write arbitrary files, leading to credential theft or persistent code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-88937?
CVE-2026-88937 is a high-severity path traversal vulnerability in knowns-dev knowns, published on 10 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
knowns through 0.33.0 fails to properly validate template destination paths in the code generation template engine, allowing attackers to read and write arbitrary files outside the project root. Attackers can supply malicious templates that traverse directories to overwrite shell profiles, steal credentials, or achieve persistent code execution on victim systems.
Weakness: CWE-22
Which versions are affected by CVE-2026-88937?
How do I fix CVE-2026-88937?
No fix has been published for CVE-2026-88937 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-88937 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-88937 exists.
Sources
Also known as GHSA-86p5-fgr2-j5mh.