CVE-2026-74858

MEDIUM 6.3

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

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-918
Vendor	jae-jae
Product	fetcher-mcp
Published	Aug 17, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

jae-jae / fetcher-mcp

0.3.0 0.3.1 0.3.2 0.3.3 0.3.4 0.3.5 0.3.6 0.3.7 0.3.8 0.3.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/391221 vuldb.com: https://vuldb.com/vuln/391221/cti vuldb.com: https://vuldb.com/cve/CVE-2026-74858 vuldb.com: https://vuldb.com/submit/876015 github.com: https://github.com/jae-jae/fetcher-mcp/issues/37 github.com: https://github.com/jae-jae/fetcher-mcp/

Credits

🔍 xiaobu (VulDB User) VulDB CNA Team