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CVE-2026-104458Published

YesWiki before 4.6.7 SSRF Guard Bypass via IPv6 Transition Addresses

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-104458

Published

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.

Source published
2 Oct 2026 11:38:27 UTC
Source modified
2 Oct 2026 14:10:28 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 8.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

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

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 21:06 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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