CVE-2026-5530 | Ollama up to 18.1 Model Pull API server/download.go server-side request forgery

VDB-355283 · CVE-2026-5530 · GCVE-100-355283 OLLAMA UP TO 18.1 MODEL PULL API SERVER/DOWNLOAD.GO SERVER-SIDE REQUEST FORGERY HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability was found in Ollama up to 18.1. It has been classified as critical. Impacted is an unknown function of the file server/download.go of the component Model Pull API. The manipulation leads to server-side request forgery. This vulnerability is listed as CVE-2026-5530. The attack may be initiated remotely. There is no available exploit. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in Ollama up to 18.1. It has been rated as critical. This issue affects an unknown code block of the file server/download.go of the component Model Pull API. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. The identification of this vulnerability is CVE-2026-5530. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/04/2026). The vendor was contacted early about this disclosure but did not respond in any way. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name Ollama Version 18.0 18.1 CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.1 VulDB Base Score: 6.3 VulDB Temp Score: 6.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Server-side request forgery CWE: CWE-918 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/04/2026 Advisory disclosed 04/04/2026 +0 days VulDB entry created 04/04/2026 +0 days VulDB entry last update Sourcesinfo Status: Not defined CVE: CVE-2026-5530 (🔒) GCVE (CVE): GCVE-0-2026-5530 GCVE (VulDB): GCVE-100-355283 Entryinfo Created: 04/04/2026 08:34 Changes: 04/04/2026 08:34 (51) Complete: 🔍 Submitter: davidrochester Cache ID: 99:A96:101 Submitinfo Accepted Submit #782107: Ollama 18.1 and previous Server-Side Request Forgery (by davidrochester) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸