CVE-2026-5638 HerikLyma CPPWebFramework path traversal
Remote attackers can exploit a path traversal vulnerability in the CPPWebFramework library to access unauthorized files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5638?
CVE-2026-5638 is a medium-severity path traversal vulnerability in HerikLyma CPPWebFramework, published on 6 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was detected in HerikLyma CPPWebFramework up to 3.1. This issue affects some unknown processing. Performing a manipulation results in path traversal. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-22
Which versions are affected by CVE-2026-5638?
How do I fix CVE-2026-5638?
No fix has been published for CVE-2026-5638 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-2026-5638 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5638 exists.
Sources
Also known as GHSA-gmx4-p9gm-fxcw.