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.
Published: 2026-09-24
Score: 8.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Thu, 24 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
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.
Title Pulpcore: pulpcore: file:// scheme allowlist bypass in content upload file_url field enables arbitrary file read and pulp container registry signing key theft
First Time appeared Redhat
Redhat ansible Automation Platform
Redhat rhui
Redhat satellite
Weaknesses CWE-22
CPEs cpe:/a:redhat:ansible_automation_platform:2
cpe:/a:redhat:rhui:4::el8
cpe:/a:redhat:rhui:5::el9
cpe:/a:redhat:satellite:6
Vendors & Products Redhat
Redhat ansible Automation Platform
Redhat rhui
Redhat satellite
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}


Subscriptions

Redhat Ansible Automation Platform Rhui Satellite
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-24T14:49:10.024Z

Reserved: 2026-09-14T13:07:08.553Z

Link: CVE-2026-90959

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-24T15:17:53.540

Modified: 2026-09-24T15:17:53.540

Link: CVE-2026-90959

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses