Description
A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| ollama | ollama/ollama | unspecified – ≤ latest | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20250523T151856-1.1 | openSUSE-SU-2025:15159-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | k8sgpt | 0.4.28-r0 | — |
| Wolfi rolling | mods | 1.8.1-r14 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/ollama/ollama | <= 0.5.11 | — | GHSA-wrh5-cmwx-q2qr |
| Go | github.com/ollama/ollama | all versions | — | GO-2025-3695 |
Advisories 1
- openSUSE-SU-2025:15159-1 govulncheck-vulndb-0.0.20250523T151856-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026