{"id":"CVE-2026-86289","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.","modified":"2026-09-09T03:46:25.325603463Z","published":"2026-09-07T08:45:15.290Z","database_specific":{"cwe_ids":["CWE-189","CWE-190"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86289.json","cna_assigner":"VulDB"},"references":[{"type":"WEB","url":"https://github.com/ollama/ollama/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86289.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86289"},{"type":"ADVISORY","url":"https://vuldb.com/cve/CVE-2026-86289"},{"type":"ADVISORY","url":"https://vuldb.com/submit/906136"},{"type":"ADVISORY","url":"https://vuldb.com/vuln/399448"},{"type":"REPORT","url":"https://github.com/ollama/ollama/issues/17033"},{"type":"REPORT","url":"https://vuldb.com/vuln/399448/cti"},{"type":"FIX","url":"https://github.com/ollama/ollama/commit/67b6a1c2d45321e0cb3c04a18073f9818de7724b"},{"type":"FIX","url":"https://github.com/ollama/ollama/pull/17062"},{"type":"FIX","url":"https://github.com/ollama/ollama/releases/tag/v0.31.2-rc1"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ollama/ollama","events":[{"introduced":"ada1eb516354a0428c48202b1a8966550056df8e"},{"fixed":"67b6a1c2d45321e0cb3c04a18073f9818de7724b"}],"database_specific":{"extracted_events":[{"introduced":"0.31.0"},{"last_affected":"0.31.0"},{"introduced":"0.31.1"},{"last_affected":"0.31.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["0.31.0","0.31.1","v0.31.2-rc0","v0.31.1","v0.31.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86289.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}