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Vulnerability · Published Aug 17, 2026 · Assigned by VulDB

CVE-2026-74858jae-jae fetcher-mcp URL Validation security-credentials fetch_urls server-side request forgery

Medium 6.3

In plain English

A medium-severity server-side request forgery in fetcher-mcp from jae-jae. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.4%top 69.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 products (as reported)

VendorProductVersions
jae-jae fetcher-mcp 0.3.00.3.10.3.20.3.30.3.40.3.50.3.60.3.7

Weakness: CWE-918 · Vector: 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

References