{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-86289", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-09-06T15:44:05.664Z", "datePublished": "2026-09-07T08:45:15.290Z", "dateUpdated": "2026-09-07T08:45:15.290Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-09-07T08:45:15.290Z"}, "title": "Ollama GGUF Decoder gguf.go readGGUFV1String integer overflow", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-190", "lang": "en", "description": "Integer Overflow"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-189", "lang": "en", "description": "Numeric Error"}]}], "affected": [{"vendor": "n/a", "product": "Ollama", "versions": [{"version": "0.31.0", "status": "affected"}, {"version": "0.31.1", "status": "affected"}, {"version": "0.31.2-rc1", "status": "unaffected"}], "cpes": ["cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*"], "modules": ["GGUF Decoder"]}], "descriptions": [{"lang": "en", "value": "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."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "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", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 4.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 4.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 5, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}], "timeline": [{"time": "2026-09-06T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-09-06T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-09-06T17:49:13.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "m00dy (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/399448", "name": "VDB-399448 | Ollama GGUF Decoder gguf.go readGGUFV1String integer overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/399448/cti", "name": "VDB-399448 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-86289", "name": "CVE-2026-86289 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/906136", "name": "Submit #906136 | Ollama <= 0.17.1 Integer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://github.com/ollama/ollama/issues/17033", "tags": ["exploit", "issue-tracking"]}, {"url": "https://github.com/ollama/ollama/pull/17062", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/ollama/ollama/commit/67b6a1c2d45321e0cb3c04a18073f9818de7724b", "tags": ["patch"]}, {"url": "https://github.com/ollama/ollama/releases/tag/v0.31.2-rc1", "tags": ["patch"]}, {"url": "https://github.com/ollama/ollama/", "tags": ["product"]}], "tags": ["x_open-source"], "x_generator": ["VulDB PVTS v202609"]}}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*"], "modules": ["GGUF Decoder"], "product": "Ollama", "vendor": "n/a", "versions": [{"status": "affected", "version": "0.31.0"}, {"status": "affected", "version": "0.31.1"}, {"status": "unaffected", "version": "0.31.2-rc1"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-86289", "lastModified": "2026-09-07T09:17:17.470", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-09-07T09:17:17.470", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/ollama/ollama/"}, {"source": "cna@vuldb.com", "url": "https://github.com/ollama/ollama/commit/67b6a1c2d45321e0cb3c04a18073f9818de7724b"}, {"source": "cna@vuldb.com", "url": "https://github.com/ollama/ollama/issues/17033"}, {"source": "cna@vuldb.com", "url": "https://github.com/ollama/ollama/pull/17062"}, {"source": "cna@vuldb.com", "url": "https://github.com/ollama/ollama/releases/tag/v0.31.2-rc1"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-86289"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/906136"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/399448"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/399448/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-189"}, {"lang": "en", "value": "CWE-190"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.31.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "0.31.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "0.31.2-rc1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "inferred", "scores": [{"score": 100.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Ollama", "source": "cna", "vendor": "n/a"}, "product": "ollama", "vendor": "ollama"}], "created": "2026-09-07T13:45:06.387184+00:00", "updated": "2026-09-07T14:00:17.397532+00:00", "vendors": ["ollama", "ollama$PRODUCT$ollama"]}