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Echo: Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default

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.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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

12 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.

6 Nov 2026 00:43:54 UTC

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make up…

euvd · EUVD-2026-112406 · Published

5 Nov 2026 23:38:32 UTC

Echo: Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default

osv · GHSA-99jh-6h7p-pp36 · Published

5 Nov 2026 23:38:32 UTC

Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default in github.com/labstack/echo

osv · GO-2026-6875 · Published

4 Nov 2026 00:05:30 UTC

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make up…

euvd · EUVD-2026-112406 · Published

1 Nov 2026 23:02:54 UTC

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make up…

euvd · EUVD-2026-112406 · Published

30 Oct 2026 22:47:36 UTC

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make up…

euvd · EUVD-2026-112406 · Published

30 Oct 2026 21:45:28 UTC

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make up…

nvd · CVE-2026-118651 · Published

29 Oct 2026 21:48:56 UTC

Echo: Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default

cve-program · CVE-2026-118651 · Published

28 Oct 2026 20:58:10 UTC

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make up…

euvd · EUVD-2026-112406 · Published

28 Oct 2026 20:57:26 UTC

Echo is a Go web framework. From 4.0.0 until 5.4.0, the Proxy middleware can preserve an attacker-supplied X-Real-IP header and forward it to an upstream service when Echo.IPExtractor is not configured. A remote client can therefore make up…

nvd · CVE-2026-118651 · Published

28 Oct 2026 20:57:17 UTC

Echo: Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default

osv · GHSA-99jh-6h7p-pp36 · Published

28 Oct 2026 20:55:13 UTC

Echo: Reverse Proxy Forwards Attacker-Supplied X-Real-IP to Upstream by Default

cve-program · CVE-2026-118651 · 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 7 Nov 00:33 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current