5.3

CVE-2026-73549

Envoy - Incomplete fix for CVE-2026-26310: copyInternetAddressAndPort crashes on scoped IPv6 addresses in ORIGINAL_DST clusters

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's Utility::copyInternetAddressAndPort and QUIC client-address paths reconstruct scoped IPv6 addresses through addressAsString and Ipv6Instance. The string includes a percent scope identifier that inet_pton cannot parse, causing an exception or abort. Kernel-provided scoped IPv6 destinations in ORIGINAL_DST transparent-proxy deployments, and affected QUIC connection paths, can therefore terminate the process. The relevant scope boundary is that the HTTP use_http_header override rejects scoped addresses earlier; the advisory's crash path requires a kernel-provided original destination or the affected QUIC path. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Envoyproxy ≫ Envoy Version < 1.36.10
Envoyproxy ≫ Envoy Version >= 1.37.0 < 1.37.6
Envoyproxy ≫ Envoy Version >= 1.38.0 < 1.38.4
Envoyproxy ≫ Envoy Version >= 1.39.0 < 1.39.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.61% 0.476
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.3 1.6 3.6
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-754 Improper Check for Unusual or Exceptional Conditions

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

https://github.com/envoyproxy/envoy/releases/tag/v1.36.10
Release Notes
https://github.com/envoyproxy/envoy/releases/tag/v1.37.6
Release Notes
https://github.com/envoyproxy/envoy/releases/tag/v1.38.4
Release Notes
https://github.com/envoyproxy/envoy/releases/tag/v1.39.1
Release Notes
https://github.com/envoyproxy/envoy/security/advisories/GHSA-jp5f-qr64-c9vw
Vendor Advisory
Mitigation
https://github.com/envoyproxy/envoy/commit/109e5a5b08ad10d99074cefd55a747a16ee64da7
Patch
https://github.com/envoyproxy/envoy/commit/59b1744a6cb62746db418ac06fc5e359fd25fdb7
Patch
https://github.com/envoyproxy/envoy/commit/6e39f4c94deff7a60d382c2d95883e0ea49ff691
Patch
https://github.com/envoyproxy/envoy/commit/ab2dca2d65b079768230a7c3d825afeefa330215
Patch