CVE-2025-63389

criticalpriority · track · 0OT risk · elevatedEPSS 0.007 · 53 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.71% (53rd) EPSS

CVSS 9.8 · critical

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including v0.12.3. The platform exposes multiple API endpoints without requiring authentication, enabling remote attackers to perform unauthorized model management operations.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-306USCWE-306US

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
ollama ollama≤ 0.12.3nvdUScpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*
Go github.com/ollama/ollama≤ 0.13.5osvUSpkg:golang/github.com/ollama/ollama
Go github.com/ollama/ollamaall versionsosvUSpkg:golang/github.com/ollama/ollama

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-f6mr-38g8-39rgOllama Platform has missing authentication enabling attackers to perform model management operations2025-12-18ghsa · osvUS
A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including v0.12.3. The platform exposes multiple API endpoints without requiring authentication, enabling remote attackers to perform unauthorized model management operations.
GO-2025-4251Ollama has missing authentication enabling attackers to perform model management operations in github.com/ollama/ollama2026-01-14vendor · osvUS
Ollama has missing authentication enabling attackers to perform model management operations in github.com/ollama/ollama

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2025-12-18modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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