CVE-2026-5638 | HerikLyma CPPWebFramework up to 3.1 path traversal (Issue 40)

VDB-355426 · CVE-2026-5638 · ISSUE 40 HERIKLYMA CPPWEBFRAMEWORK UP TO 3.1 PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability categorized as critical has been discovered in HerikLyma CPPWebFramework up to 3.1. Impacted is an unknown function. Executing a manipulation can lead to path traversal. This vulnerability is handled as CVE-2026-5638. The attack can be executed remotely. Additionally, an exploit exists. The project was informed of the problem early through an issue report but has not responded yet. Detailsinfo A vulnerability was found in HerikLyma CPPWebFramework up to 3.1. It has been declared as critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. The advisory is available at github.com. This vulnerability was named CVE-2026-5638. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project. It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor HerikLyma Name CPPWebFramework Version 3.0 3.1 Website Product: https://github.com/HerikLyma/CPPWebFramework/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 4.8 VulDB Base Score: 5.3 VulDB Temp Score: 4.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Path traversal CWE: CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/05/2026 Advisory disclosed 04/05/2026 +0 days VulDB entry created 04/05/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: 40 Status: Not defined CVE: CVE-2026-5638 (🔒) GCVE (CVE): GCVE-0-2026-5638 GCVE (VulDB): GCVE-100-355426 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/05/2026 22:26 Changes: 04/05/2026 22:26 (55) Complete: 🔍 Submitter: MatanS Cache ID: 99:49E:101 Submitinfo Accepted Submit #785952: HerikLyma CPPWebFramework <= 3.1 (HTTP Server Header) Relative Path Traversal (by MatanS) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸