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CVE-2026-74858

jae-jae fetcher-mcp URL Validation security-credentials fetch_urls server-side request forgery

MEDIUM
6.3
CVSS Score
Published: August 17, 2026 at 03:15 PM UTC
Updated: August 20, 2026 at 01:05 PM UTC
1 product affected across 1 vendorFetcher Mcp

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/391221
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/391221/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-74858
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/876015
Broken LinkIssue Tracking
Source: cverecord
https://github.com/jae-jae/fetcher-mcp/issues/37
Product
Source: cverecord
https://github.com/jae-jae/fetcher-mcp/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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