CVE-2026-90959

Pulpcore: pulpcore: file:// scheme allowlist bypass in content upload file_url field enables arbitrary file read and pulp container registry signing key theft

Published Sep 24, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Workaround

No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.

Tracking

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Advisories

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History
Type Values Removed Values Added
First Time appeared Redhat satellite Capsule
Redhat satellite Maintenance
Redhat satellite Utils
CPEs cpe:/a:redhat:satellite:6.16::el8
cpe:/a:redhat:satellite:6.16::el9
cpe:/a:redhat:satellite:6.17::el9
cpe:/a:redhat:satellite:6.18::el9
cpe:/a:redhat:satellite_capsule:6.16::el8
cpe:/a:redhat:satellite_capsule:6.16::el9
cpe:/a:redhat:satellite_capsule:6.17::el9
cpe:/a:redhat:satellite_capsule:6.18::el9
cpe:/a:redhat:satellite_maintenance:6.17::el9
cpe:/a:redhat:satellite_maintenance:6.18::el9
cpe:/a:redhat:satellite_utils:6.16::el8
cpe:/a:redhat:satellite_utils:6.16::el9
cpe:/a:redhat:satellite_utils:6.17::el9
cpe:/a:redhat:satellite_utils:6.18::el9
Vendors & Products Redhat satellite Capsule
Redhat satellite Maintenance
Redhat satellite Utils
References
Type Values Removed Values Added
First Time appeared Redhat ansible Automation Platform Developer
Redhat ansible Automation Platform Inside
CPEs cpe:/a:redhat:ansible_automation_platform:2.6::el10
cpe:/a:redhat:ansible_automation_platform:2.6::el9
cpe:/a:redhat:ansible_automation_platform_developer:2.6::el10
cpe:/a:redhat:ansible_automation_platform_developer:2.6::el9
cpe:/a:redhat:ansible_automation_platform_inside:2.6::el9
Vendors & Products Redhat ansible Automation Platform Developer
Redhat ansible Automation Platform Inside
References
Type Values Removed Values Added
First Time appeared Redhat update Infrastructure
Redhat update Infrastructure 4 For Cloud Providers
Vendors & Products Redhat update Infrastructure
Redhat update Infrastructure 4 For Cloud Providers
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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'}