SSRF in Ollama

CVE-2026-5530

A flaw has been found in Ollama up to 0.18.1. This issue affects some unknown processing of the file server/download.go of the component Model Pull API. Executing a manipulation can lead to server-side request forgery. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.003 (22.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

  • N/a Ollama — versions 0.18.0, 0.18.1, 18.1

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-5530?
CVE-2026-5530 is a medium-severity vulnerability in Ollama, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-04-05.
How severe is CVE-2026-5530?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2026-5530 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.