CVE-2026-86289
mediumA vulnerability was found in Ollama up to 0.31.1.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/ollama/ollama/ cna@vuldb.com
- https://github.com/ollama/ollama/commit/67b6a1c2d45321e0cb3c04a18073f9818de7724b cna@vuldb.com
- https://github.com/ollama/ollama/issues/17033 cna@vuldb.com
- https://github.com/ollama/ollama/pull/17062 cna@vuldb.com
- https://github.com/ollama/ollama/releases/tag/v0.31.2-rc1 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-86289 cna@vuldb.com
- https://vuldb.com/submit/906136 cna@vuldb.com
- https://vuldb.com/vuln/399448 cna@vuldb.com
- https://vuldb.com/vuln/399448/cti cna@vuldb.com