| Component | Ollama |
| Severity | critical (CVSS 9.4) |
| CVSS vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| Published (NVD) | 2026-10-08 |
| Affected versions | < 0.35.0 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | 0.35.0 |
| Weakness | CWE-23CWE-913 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade Ollama to
0.35.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Read more
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