CVE-2026-12701 — Pulpcore: pulpcore: relative_path_validator bypass via directory traversal in filesystemexport
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 tr…
Published: 2026-07-20 · CVSS: 9.0 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7