Ollama before 0.17.1 contains a heap out-of-bounds read vulnerability in the GGUF model loader. The /api/create endpoint accepts an attacker-supplied GGUF file in which the declared tensor offset and size exceed the file's actual length; during quantization in fs/ggml/gguf.go and server/quantization.go (WriteTo()), the server reads past the allocated heap buffer. The leaked memory contents may include environment variables, API keys, system prompts, and concurrent users' conversation data, and can be exfiltrated by uploading the resulting model artifact through the /api/push endpoint to an attacker-controlled registry. The /api/create and /api/push endpoints have no authentication in the upstream distribution. Default deployments bind to 127.0.0.1, but the documented OLLAMA_HOST=0.0.0.0 configuration is widely used in practice (large public-internet exposure observed).
References
| Link | Resource |
|---|---|
| https://github.com/ollama/ollama/commit/88d57d0483cca907e0b23a968c83627a20b21047 | Patch |
| https://github.com/ollama/ollama/pull/14406 | Issue Tracking Patch |
| https://github.com/ollama/ollama/releases/tag/v0.17.1 | Release Notes |
Configurations
History
11 May 2026, 12:27
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:* | |
| First Time |
Ollama ollama
Ollama |
|
| References | () https://github.com/ollama/ollama/commit/88d57d0483cca907e0b23a968c83627a20b21047 - Patch | |
| References | () https://github.com/ollama/ollama/pull/14406 - Issue Tracking, Patch | |
| References | () https://github.com/ollama/ollama/releases/tag/v0.17.1 - Release Notes |
04 May 2026, 13:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-04 13:16
Updated : 2026-05-11 12:27
NVD link : CVE-2026-7482
Mitre link : CVE-2026-7482
CVE.ORG link : CVE-2026-7482
JSON object : View
Products Affected
ollama
- ollama
CWE
CWE-125
Out-of-bounds Read