Riskcovery

CVE-2026-86289

Ollama GGUF Decoder gguf.go readGGUFV1String integer overflow

State
Published
Severity
5.3 Medium
Published
Sep 7, 2026
Updated
Sep 11, 2026
Reserved
Sep 6, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.05.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:PVulDB
3.14.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:CVulDB
3.04.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:CVulDB
2.05.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:CVulDB

Weaknesses

Affected Products

ProductVersions
Ollaman/a
  • 0.31.0Affected
  • 0.31.1Affected
  • 0.31.2-rc1Not affected

References

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