Path Traversal Vulnerability in Npitre Cramfs-tools Directory Handler
CVE-2026-8274

4.8MEDIUM

Key Information:

Vendor

Npitre

Status
Cramfs-tools
Vendor
CVE Published:
11 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8274?

A security vulnerability has been identified in Npitre cramfs-tools versions up to 2.1, specifically within the do_directory function in cramfsck.c. This issue allows local attackers to manipulate the path and access restricted directories through path traversal exploits. The problem has been publicly disclosed, making it crucial for users to upgrade to version 2.2 or later to mitigate the risk effectively. The patch addressing this vulnerability can be found under commit 2fc492747115b24d8a07eddd27a2d45229cb273c.

Affected Version(s)

cramfs-tools 2.0

cramfs-tools 2.1

cramfs-tools 2.2

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-2026-8274 - Proof of Concept

References

https://vuldb.com/vuln/362571
vdb-entrytechnical-description
https://vuldb.com/vuln/362571/cti
signaturepermissions-required
https://vuldb.com/submit/810864
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

nich0las (VulDB User)
.