CVE-2026-5638

Name: CVE-2026-5638
Creator: NVD / NIST
Published: 2026-04-06T09:16:18.267+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2026-5638 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A vulnerability was detected in HerikLyma CPPWebFramework up to 3.1. This issue affects some unknown processing. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS 4.0

5.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.49%

38.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

References

Timeline

Published: Apr 6, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-5638?

How severe is CVE-2026-5638?

CVE-2026-5638 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5638?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5638?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST