Public mode

No access to your tenant or devices. Every item links to its source. What this means

Some sources or documents need attention: 274/275 feeds/APIs · 469/469 docs · 9/9 advisories · checked 18:12 UTC Customize Public modeDiscuss ChangeIntel on Discord

Traefik: ForwardAuth identity spoofing via dot-form header alias

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

Open an individual CVE identifier to page its complete risk history.

Dated risk observations

Risk history is separate from CNA/OSV content history. Daily score drift is retained but only an upward crossing of 10% triggers the prediction change event.

Immutable source observations

20 recorded revisions

Each citation identifies one complete source statement. Source modification dates and the time this installation observed them are distinct. Latest history includes records historically associated by source identifiers; a removed alias is not a current equivalence claim. Exact citations show that source record's own earlier observations. Failed reads and unchanged polls do not rewrite history.

9 Nov 2026 16:08:30 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

euvd · EUVD-2026-75429 · Published

9 Nov 2026 16:08:03 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

euvd · EUVD-2026-75584 · Published

7 Nov 2026 15:24:25 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

euvd · EUVD-2026-75429 · Published

7 Nov 2026 15:23:58 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

euvd · EUVD-2026-75584 · Published

5 Nov 2026 14:40:18 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

euvd · EUVD-2026-75429 · Published

5 Nov 2026 14:39:52 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

euvd · EUVD-2026-75584 · Published

3 Nov 2026 14:02:50 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

euvd · EUVD-2026-75429 · Published

3 Nov 2026 14:02:25 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

euvd · EUVD-2026-75584 · Published

1 Nov 2026 13:03:01 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

euvd · EUVD-2026-75429 · Published

1 Nov 2026 13:02:36 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

euvd · EUVD-2026-75584 · Published

30 Oct 2026 12:52:49 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

euvd · EUVD-2026-75429 · Published

30 Oct 2026 12:52:24 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

euvd · EUVD-2026-75584 · Published

28 Oct 2026 10:35:40 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

euvd · EUVD-2026-75429 · Published

28 Oct 2026 10:35:15 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

euvd · EUVD-2026-75584 · Published

25 Oct 2026 16:19:22 UTC

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy bec…

nvd · CVE-2026-88011 · Published

25 Oct 2026 16:19:22 UTC

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, X_Auth_User and X.Auth.User are treated as three distinct…

nvd · CVE-2026-88879 · Published

24 Oct 2026 13:19:41 UTC

Traefik: ForwardAuth identity spoofing via dot-form header alias

osv · GHSA-rf44-j88r-hh8c · Published

24 Oct 2026 13:19:41 UTC

Traefik: ForwardAuth identity spoofing via dot-form header alias in github.com/traefik/traefik

osv · GO-2026-6455 · Published

23 Oct 2026 15:48:27 UTC

Traefik: ForwardAuth identity spoofing via dot-form header alias

cve-program · CVE-2026-88011 · Published

23 Oct 2026 15:48:27 UTC

Traefik before v2.11.56 Identity Spoofing via Header Alias

cve-program · CVE-2026-88879 · Published

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 10 Nov 18:12 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current