CVE-2025-15514
- Source
- https://cve.org/CVERecord?id=CVE-2025-15514
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-15514.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-15514
- Downstream
- Published
- 2026-01-12T23:15:51.957Z
- Modified
- 2026-03-15T21:45:19.904360Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Ollama 0.11.5-rc0 through current version 0.13.5 contain a null pointer dereference vulnerability in the multi-modal model image processing functionality. When processing base64-encoded image data via the /api/chat endpoint, the application fails to validate that the decoded data represents valid media before passing it to the mtmdhelperbitmapinitfrom_buf function. This function can return NULL for malformed input, but the code does not check this return value before dereferencing the pointer in subsequent operations. A remote attacker can exploit this by sending specially crafted base64 image data that decodes to invalid media, causing a segmentation fault and crashing the runner process. This results in a denial of service condition where the model becomes unavailable to all users until the service is restarted.
- References
Affected packages
Git / github.com/ollama/ollama
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ollama/ollama
- Events
-
IntroducedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "0.11.6" }, { "last_affected": "0.13.5" }, { "introduced": "0" }, { "last_affected": "0.11.5-NA" }, { "introduced": "0" }, { "last_affected": "0.11.5-rc0" }, { "introduced": "0" }, { "last_affected": "0.11.5-rc1" }, { "introduced": "0" }, { "last_affected": "0.11.5-rc2" }, { "introduced": "0" }, { "last_affected": "0.11.5-rc3" }, { "introduced": "0" }, { "last_affected": "0.11.5-rc4" }, { "introduced": "0" }, { "last_affected": "0.11.5-rc5" } ] }