CVE-2026-12701

CRITICAL
INFO Priority: 0.11 BB Relevance: 63/100
Published: 2026-07-20 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Interaction Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Changed
C: Low
I: High
A: High

Description

A path traversal vulnerability was found in pulpcore. The relative_path_validator function only verifies that content paths do not begin with "/" but fails to block directory traversal sequences such as "../" anywhere in the path. An authenticated administrator can craft a relative_path containing embedded traversal sequences (e.g., "looking/normal/../../../../etc/shadow") that escapes the intended export directory during FilesystemExport operations. Because the file content is also user-controlled (uploaded artifact), this allows arbitrary file write to any location writable by the Pulp service user, potentially leading to service compromise or further system exploitation.

References & Advisories (10)

https://access.redhat.com/errata/RHSA-2026:42078
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42079
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42082
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42132
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42142
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42150
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42151
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42240
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2490703
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.0 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H

EPSS — Exploitation Probability

1.19%
Raw Score 0.011940
Percentile 68.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.01194
2026-11-12
0.01194
2026-11-10
0.01194
2026-11-09
0.01194
2026-11-08
0.01194
2026-11-07
0.01194
2026-11-06
0.01194
2026-11-05
0.01194
2026-11-04
0.01194
2026-11-03
0.01194
2026-11-02
0.01194

Intelligence Sources

mitre ref →