Medium severity4.3NVD Advisory· Published Sep 7, 2026· Updated Sep 11, 2026
CVE-2026-86289
CVE-2026-86289
Description
A vulnerability was found in Ollama up to 0.31.1. This issue affects the function readGGUFV1String of the file fs/ggml/gguf.go of the component GGUF Decoder. Performing a manipulation results in integer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could be used. Upgrading to version 0.31.2-rc1 is capable of addressing this issue. The patch is named 67b6a1c2d45321e0cb3c04a18073f9818de7724b. It is recommended to upgrade the affected component.
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Affected products
1Patches
Vulnerability mechanics
References
8- github.com/ollama/ollama/commit/67b6a1c2d45321e0cb3c04a18073f9818de7724bnvd
- github.com/ollama/ollama/issues/17033nvd
- github.com/ollama/ollama/pull/17062nvd
- github.com/ollama/ollama/releases/tag/v0.31.2-rc1nvd
- vuldb.com/cve/CVE-2026-86289nvd
- vuldb.com/submit/906136nvd
- vuldb.com/vuln/399448nvd
- vuldb.com/vuln/399448/ctinvd
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