| Component | Ollama |
| Severity | high (CVSS 7.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Published (NVD) | 2026-06-26 |
| Last modified | 2026-06-29 |
| Affected versions | ollama <= 0.13.5 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-125 |
| CISA KEV | not listed |
NVD description
Unauthenticated remote information disclosure vulnerability in Ollama's model quantization engine allows an attacker to read and exfiltrate the server's heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep Ollama off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-5757
- https://kb.cert.org/vuls/id/518910
- https://www.kb.cert.org/vuls/id/518910
- https://ollama.com
Read more
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