Pulp RPM plugin directory traversal write vulnerability
CVE-2026-103870 Published on October 7, 2026

Pulp-rpm: distribution tree publish creates directories from .treeinfo ids
A flaw was found in pulp-rpm when it publishes a distribution tree. Addon and variant ids from .treeinfo are used as directory names. A user who can sync or upload that tree can make the publish task create a new directory outside the task work area and write that tree's repository metadata and packages there, as the Pulp worker user. An existing file or directory is not replaced. The flaw does not disclose data and does not stop the service.

Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-103870 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Exploitation:
NONE
Automatable:
NO
Technical Impact:
PARTIAL
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
NONE

Timeline

Reported to Red Hat.

Made public. 6 days later.

Weakness Type

What is a Directory traversal Vulnerability?

The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CVE-2026-103870 has been classified to as a Directory traversal vulnerability or weakness.


Products Associated with CVE-2026-103870

Want to know whenever a new CVE is published for Red Hat products? stack.watch will email you.

Red Hat Satellite
Red Hat Rhui
Red Hat Satellite Capsule
Red Hat Satellite Utils
Red Hat Satellite Maintenance

Affected Versions

Red Hat Satellite 6.16 for RHEL 8: Red Hat Satellite 6.16 for RHEL 8: Red Hat Satellite 6.16 for RHEL 9: Red Hat Satellite 6.16 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.17 for RHEL 9: Red Hat Satellite 6.18 for RHEL 9: Red Hat Satellite 6.18 for RHEL 9: Red Hat Satellite 6.19 for RHEL 9: Red Hat Satellite 6.19 for RHEL 9: Red Hat Update Infrastructure 4 for Cloud Providers: Red Hat Update Infrastructure 4 for Cloud Providers: Red Hat Update Infrastructure 5: Red Hat Update Infrastructure 5: Red Hat Update Infrastructure 5:

Exploit Probability

EPSS
0.27%
Percentile
19.26%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.