High
Security advisory
An issue was discovered in Ollama before 0.1.34. The CreateModelHandler function uses os.Open to read a file until completion. The req.Path parameter is user-controlled and can be set to /dev/random, which is blocking, causing the goroutine to run infinitely (even after the HTTP request is aborted by the client).
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2024-39721
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 04:02 UTC · Revision 1
Source evidence
An issue was discovered in Ollama before 0.1.34. The CreateModelHandler function uses os.Open to read a file until completion. The req.Path parameter is user-controlled and can be set to /dev/random, which is blocking, causing the goroutine to run infinitely (even after the HTTP request is aborted by the client).
osv:CVE-2024-39721
Complete source record
{
"id": "a5439fd4e3715d39c6085739685de545e4e20008992728500b3f95e51672a307",
"url": "https://osv.dev/vulnerability/CVE-2024-39721",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2024-39721",
"summary": "An issue was discovered in Ollama before 0.1.34. The CreateModelHandler function uses os.Open to read a file until completion. The req.Path parameter is user-controlled and can be set to /dev/random, which is blocking, causing the goroutine to run infinitely (even after the HTTP request is aborted by the client).",
"evidence": "osv:CVE-2024-39721",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2024-39721",
"aliases": [
"CVE-2024-39721"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/ollama/ollama",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "adeb40eaf29039b8964425f69a9315f9f1694ba8"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.1.34"
}
],
"source": "DESCRIPTION"
},
{
"cpe": "cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.1.34"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v0.1.34-rc1",
"v0.1.33",
"v0.1.33-rc7",
"v0.1.33-rc6",
"v0.1.33-rc5",
"v0.1.33-rc4",
"v0.1.33-rc3",
"v0.1.33-rc2",
"v0.1.33-rc1",
"v0.1.32",
"v0.1.32-rc2",
"v0.1.32-rc1",
"v0.1.30",
"v0.1.29",
"v0.1.28",
"v0.1.27",
"v0.1.26",
"v0.1.25",
"v0.1.24",
"v0.1.23",
"v0.1.22",
"v0.1.21",
"v0.1.20",
"v0.1.19",
"v0.1.18",
"v0.1.17",
"v0.1.16",
"v0.1.15",
"v0.1.14",
"v0.1.13",
"v0.1.12",
"v0.1.11",
"v0.1.10",
"v0.1.9",
"v0.1.8",
"v0.1.7",
"v0.1.6",
"v0.1.5",
"v0.1.4",
"v0.1.3",
"v0.1.2",
"v0.1.1",
"v0.1.0",
"v0.0.21",
"v0.0.20",
"v0.0.19",
"v0.0.18",
"v0.0.17",
"v0.0.16",
"v0.0.15",
"v0.0.14",
"v0.0.13",
"v0.0.12",
"v0.0.11",
"v0.0.10",
"v0.0.9",
"v0.0.8",
"v0.0.7",
"v0.0.6",
"v0.0.5",
"v0.0.4",
"v0.0.3",
"v0.0.2",
"v0.0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-39721.json"
}
}
],
"modified": "2026-10-28T02:30:25.677405940Z",
"provider": "osv",
"references": [
"https://github.com/ollama/ollama/blob/9164b0161bcb24e543cba835a8863b80af2c0c21/server/routes.go#L557",
"https://github.com/ollama/ollama/blob/adeb40eaf29039b8964425f69a9315f9f1694ba8/server/routes.go#L536",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39721.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-39721",
"https://www.oligo.security/blog/more-models-more-probllms"
],
"provider_metadata": {
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39721.json"
}
},
"related_cves": [
{
"value": "CVE-2024-39721",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 492382,
"published_at": "2024-10-31T00:00:00+00:00"
}