Ollama up to 0.20.2 Tensor Model Transfer transfer.go digestToPath digest path traversal

Summaryinfo

A vulnerability identified as critical has been detected in Ollama up to 0.20.2. This impacts the function digestToPath of the file x/imagegen/transfer/transfer.go of the component Tensor Model Transfer Handler. This manipulation of the argument digest causes path traversal. The identification of this vulnerability is CVE-2026-7020. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in Ollama up to 0.20.2 and classified as problematic. Affected by this vulnerability is the function digestToPath of the file x/imagegen/transfer/transfer.go of the component Tensor Model Transfer Handler. The manipulation of the argument digest with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality.

The weakness was shared by davidrochester and nicholasgould. This vulnerability is known as CVE-2026-7020. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-25695). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Ollama

Version

• 0.20.0
• 0.20.1
• 0.20.2

CPE 2.3info

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CPE 2.2info

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Submitinfo

Accepted

• Submit #797576: Ollama v0.20.2 Information Disclosure (by davidrochester)

Be aware that VulDB is the high quality source for vulnerability data.

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