Path Traversal Vulnerability in Decap Server by Decaporg
CVE-2026-92812

7.6HIGH

Key Information:

Vendor

Decaporg

Status
Decap-server
Vendor
CVE Published:
16 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-92812?

Decap Server exhibits a path traversal vulnerability within its local proxy containment guard. This flaw stems from the use of string prefix comparison that does not validate path separators. As a result, attackers can exploit this vulnerability to navigate sibling directories that share the same initial naming structure as the intended repository directory. This access could potentially allow unauthorized reading, writing, or deletion of files outside the specified repository root, compromising the security of sensitive data.

Affected Version(s)

decap-server 11f35405cd1a1d1216e97b890173f46436752019

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-92812 - Proof of Concept

References

https://github.com/geo-chen/oss/blob/main/decap-cms.md
technical-descriptionexploit
https://github.com/decaporg/decap-cms/blob/11f35405cd1a1d...
technical-description
https://github.com/decaporg/decap-cms
product

CVSS V4

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.