Vulnerability · Published Apr 5, 2026 · Assigned by VulDB

CVE-2026-5530Ollama Model Pull API download.go server-side request forgery

Medium 6.3

In plain English

A medium-severity server-side request forgery in Ollama. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.3%top 76.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack tooling1Public PoC

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
n/a	Ollama	0.18.00.18.1

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

References

VDB-355283 | Ollama Model Pull API download.go server-side request forgery vdb-entry
VDB-355283 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-5530 | CVE Analysis and Report third-party-advisory
Submit #782107 | Ollama 18.1 and previous Server-Side Request Forgery third-party-advisory