CVE-2026-104458

MediumCVSS 6.5/10Last modified Oct 2, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Weakness enumeration

CWE-918

Affected software

No affected versions have been published.

Timeline

Published
Oct 2, 2026
Last modified
Oct 2, 2026
NVD status
Deferred

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CVE-2026-104458: Medium severity, CVSS 6.5 | Vulnix