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CVE-2026-7482 Detail

Description

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).


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  Echo
CVSS-B 8.8 HIGH
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/AU:Y/R:A/V:D/RE:L/U:Red

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/ollama/ollama/commit/88d57d0483cca907e0b23a968c83627a20b21047 Echo
https://github.com/ollama/ollama/pull/14406 Echo
https://github.com/ollama/ollama/releases/tag/v0.17.1 Echo

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read Echo  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-7482
NVD Published Date:
05/04/2026
NVD Last Modified:
05/05/2026
Source:
Echo