VulnerabilityDeferred
CVE-2026-86289
A vulnerability was found in Ollama up to 0.31.1.
LOW 2.1EPSS 0.40%
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 2.1 LOWCVSS: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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.40% probability · 34th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189, CWE-190
- Source
- cna@vuldb.com
References
- https://github.com/ollama/ollama/
- https://github.com/ollama/ollama/commit/67b6a1c2d45321e0cb3c04a18073f9818de7724b
- https://github.com/ollama/ollama/issues/17033
- https://github.com/ollama/ollama/pull/17062
- https://github.com/ollama/ollama/releases/tag/v0.31.2-rc1
- https://vuldb.com/cve/CVE-2026-86289
- https://vuldb.com/submit/906136
- https://vuldb.com/vuln/399448
- https://vuldb.com/vuln/399448/cti
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.