EUVD-2026-70484
GHSA-57p7-34ff-7w3w
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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:X/R:X/V:X/RE:X/U:X
Network-reachable, no privileges on Ollama host, no user interaction; scope changes because the Ollama server probes separate internal systems; integrity and availability unaffected.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
Ollama fails to validate redirect destinations when pulling tensor-layer models, allowing unauthenticated attackers to redirect blob downloads to arbitrary hosts. An attacker can control a registry, serve a malicious tensor-layer manifest, and cause the server to issue GET requests to internal hosts including cloud metadata endpoints.
AnalysisAI
Server-Side Request Forgery in Ollama versions 0.30.0 through 0.33.2 allows unauthenticated remote attackers to redirect the Ollama server's blob-download requests to arbitrary internal hosts, including cloud metadata endpoints such as the AWS instance metadata service. The flaw exists in the tensor-layer model pulling code path (x/transfer/download.go), where HTTP redirect destinations are not validated against an allowlist or the originating registry host. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The Ollama server must perform a model pull (ollama pull or equivalent API call) that contacts a registry under attacker influence - either a registry the attacker controls outright, or one where they can publish a model the victim would legitimately pull. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector AV:N/AC:L/AT:N/PR:N/UI:N/VC:H reflects a low-friction, unauthenticated network attack with high confidentiality impact - most critical when Ollama runs on cloud VMs where the instance metadata service (169.254.169.254 or fd00:ec2::254) exposes IAM credentials without additional authentication. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Ollama to a version beyond 0.33.2, once a patched release is published by the project; the upstream fix has not been tagged in a named release at time of analysis, so monitor https://github.com/ollama/ollama/releases and the issue at https://github.com/ollama/ollama/issues/17041 for a confirmed fix version. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Ollama deployments across your infrastructure, identify those running versions 0.30.0 through 0.33.2, and document whether they operate on cloud platforms (AWS, GCP, Azure) with associated IAM roles or cloud credentials. …
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Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
View allVendor StatusVendor
SUSE
Severity: ImportantShare
External POC / Exploit Code
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