OCTOBER 9, 2026
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Case File

CVE-2026-90959

HIGH · CVSS 8.1 EPSS 0.32% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-24 · Last synced 2026-10-09

CyberRota Analysis

AI-Generated

A path traversal vulnerability in pulpcore allows authenticated users with low-privilege repository permissions to exploit the content upload API by providing a specially crafted 'file_url' parameter. This can lead to unauthorized access to sensitive files, including the container registry token signing private key, enabling attackers to forge bearer tokens and gain access to private container repositories. Organizations using pulpcore, especially those managing container registries, should prioritize patching this vulnerability to mitigate potential data breaches and unauthorized access.

Public Exploit Signal

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

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-90959
Severity
HIGH
CVSS
8.1
EPSS
0.32%

Original NVD Description

A path traversal vulnerability was found in pulpcore. The content upload API accepts a 'file_url' parameter that allows users with file repository privileges to specify a local file URL for Pulp to download and store. A URL scheme validation check uses a string prefix comparison that only rejects URLs beginning with 'file://', but Python's URL parser recognizes the 'file:' scheme without double slashes, creating a mismatch between what is validated and what is dispatched to the file downloader. An authenticated user with low-privilege repository permissions can supply a specially crafted URL using relative path traversal sequences to read any file accessible to the Pulp server process. In deployments that include Pulp Container, successful exploitation allows an attacker to read the container registry token signing private key and forge bearer tokens, granting unauthorized access to all private container repositories in the affected registry.