PT-2026-104268 · Yeswiki · Yeswiki

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CVE-2026-104458

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Published

2026-10-02

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Updated

2026-10-02

CVSS v3.1

6.5

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
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.

Exploit

Fix

SSRF

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Weakness Enumeration

Related Identifiers

CVE-2026-104458

Affected Products

Yeswiki