CVE-2026-7482
A public proof of concept exists; no exploitation attested.
- Published2026-05-04
- Fixed in0.17.1
- WeaknessCWE-125
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Ollama before 0.17.1 contains a heap out-of-bounds read vulnerability in the GGUF model loader. The /api/create endpoint accepts an attacker-supplied GGUF file in which the declared tensor offset and size exceed the file's actual length; during quantization in fs/ggml/gguf.go and server/quantization.go (WriteTo()), the server reads past the allocated heap buffer. The leaked memory contents may include environment variables, API keys, system prompts, and concurrent users' conversation data, and can be exfiltrated by uploading the resulting model artifact through the /api/push endpoint to an attacker-controlled registry. The /api/create and /api/push endpoints have no authentication in the upstream distribution. Default deployments bind to 127.0.0.1, but the documented OLLAMA_HOST=0.0.0.0 configuration is widely used in practice (large public-internet exposure observed).
Timeline
dates in UTC- 2026-05-0413:16CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
Observed activity
isMalicious corpus · updated 2026-10-25 15:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-7482?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-7482?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · OSV| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 0.17 | < 0.17.1 | 0.17.1 | NVD · OSV |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Ollama to 0.17.1
Advisories and patches
- github.comPatch
- github.comPatch
- github.comRelease Notes
Detection
read 2026-10-25 00:28 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 3 repositories, unverified0x0OZ/CVE-2026-7482-PoCszybnev/CVE-2026-7482kaleth4/CVE-2026-7482 PoC-in-GitHub
Sources
- NVDCVE recordread 2026-10-23
- CISA-ADPSSVC decisionnone2026-05-04
- OpenCVESSVC decisionnone—
- CNACVSS 4.08.8read 2026-10-23
- CNACVSS 3.19.1read 2026-10-23
- CNAweakness (CWE)CWE-125read 2026-10-23
- FIRST EPSSEPSS score2.2 %2026-10-25
- PoC-in-GitHubproof of concept3read 2026-10-25
- OSVaffected packages—
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- CVSS 4.0 vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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:Y/R:A/V:D/RE:L/U:Red
- Published
- 2026-05-04
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
Frequently asked questions
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