CVE-2026-86289

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-86289
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86289.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-86289
Published
2026-09-07T08:45:15Z
Modified
2026-09-09T03:46:25Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS: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 CVSS Calculator
Summary
Ollama GGUF Decoder gguf.go readGGUFV1String integer overflow
Details

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.

Database specific 
{
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-189",
        "CWE-190"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86289.json"
}
References

Affected packages

Git / github.com/ollama/ollama

Affected ranges

Type
GIT
Repo
https://github.com/ollama/ollama
Events
Introduced
ada1eb516354a0428c48202b1a8966550056df8e
Fixed
67b6a1c2d45321e0cb3c04a18073f9818de7724b
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.31.0"
        },
        {
            "last_affected": "0.31.0"
        },
        {
            "introduced": "0.31.1"
        },
        {
            "last_affected": "0.31.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.31.0
0.31.1
v0.*
v0.31.0
v0.31.1
v0.31.2-rc0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86289.json"