Ce mail provient de l'extérieur, restons vigilants ===================================================================== CERT-Renater Note d'Information No. 2026/VULN995 _____________________________________________________________________ DATE : 08/10/2026 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Ollama versions prior to 0.35.0. ==================================================================== https://cert.pl/en/posts/2026/10/CVE-2026-103663/ _____________________________________________________________________ Vulnerability in Ollama software 08 October 2026 | CERT Polska | CVE ID CVE-2026-103663 Publication date 08 October 2026 Vendor Ollama Product Ollama Vulnerable versions From 0.34.2 to 0.35.0 Vulnerability type (CWE) Relative Path Traversal (CWE-23) Report source Report to CERT Polska Description CERT Polska has received a report about vulnerability in Ollama software and participated in coordination of its disclosure. The vulnerability CVE-2026-103663: Ollama is vulnerable to path traversal in the /api/pull endpoint due to insufficient validation of layer digests by the digestToPath function. An unauthenticated remote attacker can specify a path traversal sequence as a layer digest, causing a malicious binary to be written outside the model store. Critically if the server process has write access to /usr/lib/ollama (the default in most Ollama Docker images), an attacker can write the malicious file to that directory. On the next server restart, the file is loaded and executed, resulting in remote code execution as root. This issue was fixed in version 0.35.0. Credits We thank Bartłomiej Dmitruk (striga.ai) for the responsible vulnerability report. More about the coordinated vulnerability disclosure process at CERT Polska can be found at https://cert.pl/en/cvd/. ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================