A vulnerability has been found in jae-jae fetcher-mcp up to 0.3.9. (CVE-2026-74858)
A vulnerability has been found in jae-jae fetcher-mcp up to 0.3.9. Impacted is the function fetch_url/fetch_urls of the file /latest/meta-data/iam/security-credentials/ of the component URL Validation. Such manipulation leads to server-side request forgery. It is possible to launch the attack remotely. The project was informed of the problem early through an issue report but has not responded yet.
AI Analysis
Technical Summary
This vulnerability in jae-jae fetcher-mcp (versions 0.3.0 to 0.3.9) involves improper URL validation in the fetch_url and fetch_urls functions related to the /latest/meta-data/iam/security-credentials/ component. This flaw enables server-side request forgery (CWE-918), allowing an attacker to induce the server to send crafted requests to arbitrary URLs. The issue was reported early to the project, but no remediation or patch has been provided as of the publication date.
Potential Impact
An attacker can remotely exploit this vulnerability to cause the affected server to make unauthorized requests to internal or external systems. This could lead to information disclosure or interaction with internal services that are otherwise inaccessible. However, the impact is rated medium with limited privileges required and no user interaction needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or issued a fix, users should monitor official channels for updates. Until a patch is available, consider restricting network access or applying network-level controls to limit the server's ability to make arbitrary outbound requests.
A vulnerability has been found in jae-jae fetcher-mcp up to 0.3.9. (CVE-2026-74858)
Description
A vulnerability has been found in jae-jae fetcher-mcp up to 0.3.9. Impacted is the function fetch_url/fetch_urls of the file /latest/meta-data/iam/security-credentials/ of the component URL Validation. Such manipulation leads to server-side request forgery. It is possible to launch the attack remotely. The project was informed of the problem early through an issue report but has not responded yet.
CVSS v3.1
Score 6.3medium
Affected software
pkg:github/jae-jae/fetcher-mcpRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in jae-jae fetcher-mcp (versions 0.3.0 to 0.3.9) involves improper URL validation in the fetch_url and fetch_urls functions related to the /latest/meta-data/iam/security-credentials/ component. This flaw enables server-side request forgery (CWE-918), allowing an attacker to induce the server to send crafted requests to arbitrary URLs. The issue was reported early to the project, but no remediation or patch has been provided as of the publication date.
Potential Impact
An attacker can remotely exploit this vulnerability to cause the affected server to make unauthorized requests to internal or external systems. This could lead to information disclosure or interaction with internal services that are otherwise inaccessible. However, the impact is rated medium with limited privileges required and no user interaction needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or issued a fix, users should monitor official channels for updates. Until a patch is available, consider restricting network access or applying network-level controls to limit the server's ability to make arbitrary outbound requests.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-17T09:50:57.006Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
- Gcve Source
- db.gcve.eu
Threat ID: 6a83334fbf8831d5392a45a9
Added to database: 08/17/2026, 16:14:07 UTC
Last enriched: 08/17/2026, 16:23:02 UTC
Last updated: 08/18/2026, 01:05:24 UTC
Views: 6
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