What is GHSA-gg34-f95q-rfgp?

GHSA-gg34-f95q-rfgp is a security advisory published by GitHub Security Advisories with High severity. YesWiki before 4.6.7 contains a server-side request forgery vulnerability in validateKeyIdUrl()...

Which CVE IDs does GHSA-gg34-f95q-rfgp cover?

GHSA-gg34-f95q-rfgp covers the following CVE IDs: CVE-2026-104458. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-gg34-f95q-rfgp?

GHSA-gg34-f95q-rfgp has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-gg34-f95q-rfgpHighCVSS 6.5

YesWiki before 4.6.7 contains a server-side request forgery vulnerability in validateKeyIdUrl()...

Vendor

GitHub Security Advisories

Published

October 2, 2026

Last Modified

October 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-104458 →

📋 Description

YesWiki before 4.6.7 contains a server-side request forgery vulnerability in validateKeyIdUrl() that allows unauthenticated attackers to bypass the SSRF guard using 6to4, NAT64, or IPv4-compatible IPv6 addresses. Attackers can send a crafted Signature keyId to the public actor inbox route to reach cloud metadata, loopback services, or internal hosts.

🔗 References (4)

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-85f2-5r47-2pwm
https://nvd.nist.gov/vuln/detail/CVE-2026-104458
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-guard-bypass-via-ipv6-transition-addresses
https://github.com/advisories/GHSA-gg34-f95q-rfgp