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Description

A flaw has been found in Ollama up to 18.1. This issue affects some unknown processing of the file server/download.go of the component Model Pull API. Executing a manipulation can lead to server-side request forgery. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-04-04 | Published 2026-04-05 | Updated 2026-04-06 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:ND/RC:UR

Problem types

Server-Side Request Forgery

Timeline

2026-04-04:Advisory disclosed
2026-04-04:VulDB entry created
2026-04-04:VulDB entry last update

Credits

davidrochester (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/355283 (VDB-355283 | Ollama Model Pull API download.go server-side request forgery) vdb-entry

vuldb.com/vuln/355283/cti (VDB-355283 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/782107 (Submit #782107 | Ollama 18.1 and previous Server-Side Request Forgery) third-party-advisory

cve.org (CVE-2026-5530)

nvd.nist.gov (CVE-2026-5530)

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