Vulnerability · Published Oct 30, 2026 · Assigned by VulnCheck

CVE-2026-119709Grimoire before 1.0.0 Unauthenticated SSRF via /api/fetch-metadata

Medium 5.8

In plain English

A medium-severity server-side request forgery in grimoire from goniszewski. 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 35% of all known vulnerabilities).

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.4%top 64.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Grimoire before 1.0.0 contains an unauthenticated server-side request forgery vulnerability in the /api/fetch-metadata POST handler that passes user-supplied URLs to getMetadata() without authentication checks. Attackers can submit URLs targeting loopback, internal-network, or cloud metadata endpoints and read the parsed title, description, and page content returned.

Affected products (as reported)

Vendor	Product	Versions
goniszewski	grimoire	0 – before 1.0.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

References

GitHub Issue #237 issue-tracking
https://github.com/goniszewski/grimoire product
https://github.com/goniszewski/grimoire/blob/v0.5.0/src/routes/api/fetch-metadata/%2Bserver.ts technical-description
https://github.com/goniszewski/grimoire/blob/v0.5.0/src/lib/utils/get-metadata.ts technical-description
https://hackmd.io/@hieuPenguinnn/grimoire-fetch-metadata-ssrf third-party-advisory
VulnCheck Advisory: Grimoire before 1.0.0 Unauthenticated SSRF via /api/fetch-metadata third-party-advisory