Authenticated Remote Code Execution Vulnerability in Cockpit CMS
CVE-2026-34965

8.7HIGH

Key Information:

Vendor

Cockpit

Status
Cockpit Cms
Vendor
CVE Published:
29 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-34965?

Cockpit CMS contains an authenticated remote code execution vulnerability that affects the /cockpit/collections/save_collection endpoint. This flaw enables attackers with collection management privileges to inject arbitrary PHP code into collection rules parameters. By exploiting this vulnerability, attackers can execute malicious PHP code as it is directly written to server-side PHP files and executed through the include() function, leading to full compromise of the underlying server.

Affected Version(s)

Cockpit CMS 0 <= 494765e

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-2026-34965 - Proof of Concept

References

https://github.com/agentejo/cockpit
product
https://gist.github.com/thepiyushkumarshukla/64d2318518b1...
exploittechnical-description
https://github.com/agentejo/cockpit/commits/494765e4f0fb9...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
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

Piyush Kumar Shukla
.