--- cve: "CVE-2026-12701" severity: "CRITICAL" cvss: 9.0 epss: "76%" vendor: "Red Hat" kev: false exploited: false published: "2026-07-20 15:16:34" tags: [cve, security, critical] source: tsecurity.de CVE-Dossier exported: "2026-09-03T00:32:27+02:00" --- # CVE-2026-12701 > 9.0 CRITICAL ## Beschreibung 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. ## CVSS-Vektor ``` CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Netzwerk | bad | | AC Komplexität | Gering | bad | | PR Privilegien | Hoch | good | | UI Interaktion | Keine | bad | | S Scope | Verändert | bad | | C Vertraulichkeit | Gering | warn | | I Integrität | Hoch | bad | | A Verfügbarkeit | Hoch | bad | ## Referenzen - - - - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-12701) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_