CVE-2026-48743

highPriorität · verfolgen · 0EPSS 0.003 · 22. PerzentilDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.30% (22nd) EPSS

CVSS 7.5 · high

Is it mine?

22 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · bewertet 2026-10-27

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer (HEADERS with FIN / headers-only close) but still carries a nonzero Content-Length into a complete upstream HTTP/1 request with unresolved body debt. In an HTTP/1 upstream deployment where the origin replies before reading the declared body and keeps the connection reusable, the beginning of the next Envoy-generated upstream request can be consumed as the first request's body. The remaining bytes are then parsed by the origin as a new HTTP/1 request. This was reproduced as a route-bypass/desync: direct /pwn was denied by Envoy, but the second downstream H3 stream received the response for backend-parsed GET /pwn HTTP/1.1. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:Nsecondary · security-advisories@github.comAusnutzbarkeit 2.2 · Auswirkung 4.7

v3.16.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-444US

betroffene Produkte (22)

Betroffene Produkte und Versionsbereiche.

Google Cloud Platform Envoy Proxyalle Versionencert_bundDEcpe:/a:google:cloud_platform:envoy_proxy
Google Cloud Platform in-cluster Cloud Service Mesh <1.27.9-asm.8alle Versionencert_bundDE
Google Cloud Platform in-cluster Cloud Service Mesh <1.28.9-asm.2alle Versionencert_bundDE
Google Cloud Platform in-cluster Cloud Service Mesh <1.29.5-asm.3alle Versionencert_bundDE
Google Cloud Platform managed Cloud Service Meshalle Versionencert_bundDEcpe:/a:google:cloud_platform:managed_cloud_service_mesh
Red Hat Enterprise Linuxalle Versionencert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE openSUSEalle Versionencert_bundDEcpe:/o:suse:opensuse:-
Google Cloud Platform≤ in-cluster Cloud Service Mesh <1.27.9-asm.8cert_bundDE
Google Cloud Platform≤ in-cluster Cloud Service Mesh <1.28.9-asm.2cert_bundDE
Google Cloud Platform≤ in-cluster Cloud Service Mesh <1.29.5-asm.3cert_bundDE
envoyproxy envoy1.35.0, → 1.35.11enisa_euvdEU
envoyproxy envoy1.36.0, → 1.36.7enisa_euvdEU
envoyproxy envoy1.37.0, → 1.37.3enisa_euvdEU
envoyproxy envoy1.38.0, → 1.38.1enisa_euvdEU
envoyproxy envoy1.35.0 → 1.35.13nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
envoyproxy envoy1.36.0 → 1.36.9nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
envoyproxy envoy1.37.0 → 1.37.5nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
envoyproxy envoy1.38.0 → 1.38.3nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
Bitnami envoy1.35.0 → 1.35.11osvUSpkg:bitnami/envoy
Bitnami envoy1.36.0 → 1.36.7osvUSpkg:bitnami/envoy

20 von 22 angezeigt

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

WID-SEC-W-2026-2048Google Cloud Service Mesh und Envoy Proxy: Mehrere SchwachstellenDeutsch2026-06-23csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Google Cloud Service Mesh und Envoy Proxy ausnutzen, um einen Denial-of-Service-Zustand zu verursachen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen oder andere, nicht näher bezeichnete Angriffe durchzuführen.
BIT-envoy-2026-48743Envoy: HTTP/3 to HTTP/1 request smuggling via headers-only request with nonzero Content-Length2026-06-30vendor · osvUS
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer (HEADERS with FIN / headers-only close) but still carries a nonzero Content-Length into a complete upstream HTTP/1 request with unresolved body debt. In an HTTP/1 upstream deployment where the origin replies before reading the declared body and keeps the connection reusable, the beginning of the next Envoy-generated upstream request can be consumed as the first request's body. The remaining bytes are then parsed by the origin as a new HTTP/1 request. This was reproduced as a route-bypass/desync: direct /pwn was denied by Envoy, but the second downstream H3 stream received the response for backend-parsed GET /pwn HTTP/1.1. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

veröffentlicht 2026-06-26geändert 2026-10-25

Referenzen (3)

Externe Belege — Patches, Meldungen, Analysen.

scry

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