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EUVD-2025-201730Published

Traefik is an HTTP reverse proxy and load balancer. Versions 3.5.0 through 3.6.2 have inverted TLS verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" (intending to enable backen…

Exact source revision recorded 3 Nov 2026 02:10:02 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2025-201730

Published

Traefik is an HTTP reverse proxy and load balancer. Versions 3.5.0 through 3.6.2 have inverted TLS verification logic in the nginx.ingress.kubernetes.io/proxy-ssl-verify annotation. Setting the annotation to "on" (intending to enable backend TLS certificate verification) actually disables verification, allowing man-in-the-middle attacks against HTTPS backends when operators believe they are protected. This issue is fixed in version 3.6.3.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Dec 9, 2025, 12:38:39 AM

dateUpdated: Dec 9, 2025, 4:03:28 PM

1 related source bulletins · separate from aliases

openSUSE-SU-2026:10020-1: traefik-3.6.6-1.1 on GA media

CVE-2025-66490 · CVE-2025-66491

Source published
Dec 9, 2025, 12:38:39 AM (timezone not stated)
Source modified
Dec 9, 2025, 4:03:28 PM (timezone not stated)
Observed here
3 Nov 2026 02:10:02 UTC
Source terms
ENISA EUVD · source terms and attribution apply

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: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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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 9 Nov 22:23 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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