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CVE-2026-38991

HIGH · CVSS 8.8 EPSS 0.03% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-04-29 · Last synced: 2026-05-29

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Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

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CVE
CVE-2026-38991
Severity
HIGH
CVSS
8.8
EPSS
0.03%

Original NVD Description

Cockpit 2.13.5 and earlier is affected by a misconfiguration within the Bucket component _isFileTypeAllowed function where a specially crafted filename bypasses an extension filter. This allows an authenticated attacker to rename arbitrary files with the .php file extension enabling arbitrary code to be executed on the underlying server.