CVE-2026-88008

A flaw was found in Traefik, an open source HTTP reverse proxy and load balancer. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted HTTP/2 request that includes specific upgrade headers. If the backend server accepts the upgrade, Traefik enters a raw...

Denial-Of-Service (DoS)

Http4s is vulnerable to a denial-of-service DoS. The vulnerability is due to an unbounded outbound queue that can accumulate HTTP/2 acknowledgments and WINDOWUPDATE frames when the peer stops reading, which allows an unauthenticated attacker to exhaust server heap memory by sending PING, SETTINGS...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: httpd (UTSA-2026-090049)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-090049 advisory. HTTP/2 2.4.20 through 2.4.39 very early pushes, for example configured with H2PushResource, could lead to an overwrite of memory in the pushing request's pool, leadi...

Node.js 22.x < 22.23.2 / 24.x < 24.18.1 / 26.x < 26.5.1 Multiple Vulnerabilities (Wednesday, July 29, 2026 Security Releases)

The version of Node.js used within the Brocade SANnav is not affected, but does contain the vulnerable code for the following vulnerabilities as referenced in the Wednesday, July 29, 2026 Security Releases advisory. A flaw in Node.js allows a spoofed TypedArray byteLength to trigger a reachable...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: httpd (UTSA-2026-090052)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-090052 advisory. In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: haproxy (UTSA-2026-090137)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-090137 advisory. In hpackdhtinsert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location ...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: httpd (UTSA-2026-090046)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-090046 advisory. A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgra...

SUSE SLED15 / SLES15 Security Update : libsoup (SUSE-SU-2026:4273-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4273-1 advisory. - CVE-2026-85197: heap use-after-free in HTTP/2 client ondataread via GOAWAY during body upload bsc1279238. -...

SUSE SLES15 Security Update : libsoup (SUSE-SU-2026:4274-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4274-1 advisory. - CVE-2026-85197: heap use-after-free in HTTP/2 client ondataread via GOAWAY during body upload bsc1279238. - CVE-2026-85534: heap...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: httpd (UTSA-2026-090042)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-090042 advisory. A vulnerability was found in Apache HTTP Server 2.4.17 to 2.4.38. Using fuzzed network input, the http/2 request handling could be made to access freed memory in...

CVE-2026-73548

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 forwards data for a configured non-WebSocket HTTP upgrade before the upstream accepts the upgrade. An unauthenticated HTTP/2 client can place a complete...

CVE-2026-73550

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 copies every decoded HTTP/2 Host header value before discarding it when :authority is already present. The discarded value bypasses saveHeader, so its bytes a...

CVE-2026-73550 Envoy: HTTP/2 Discarded Host Header 200 GB Header-Copy OOM in Envoy

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 copies every decoded HTTP/2 Host header value before discarding it when :authority is already present. The discarded value bypasses saveHeader, so its bytes a...

CVE-2026-73550 Envoy: HTTP/2 Discarded Host Header 200 GB Header-Copy OOM in Envoy

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 copies every decoded HTTP/2 Host header value before discarding it when :authority is already present. The discarded value bypasses saveHeader, so its bytes a...

CVE-2026-73550 Envoy: HTTP/2 Discarded Host Header 200 GB Header-Copy OOM in Envoy

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 copies every decoded HTTP/2 Host header value before discarding it when :authority is already present. The discarded value bypasses saveHeader, so its bytes a...

CVE-2026-73513 Envoy: oghttp2 upstream trailers incorrect handling

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 optional oghttp2 upstream HTTP/2 codec accepts a response trailer HEADERS frame without ENDSTREAM. Envoy completes and deferred-deletes the ActiveRequest...

CVE-2026-73513 Envoy: oghttp2 upstream trailers incorrect handling

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 optional oghttp2 upstream HTTP/2 codec accepts a response trailer HEADERS frame without ENDSTREAM. Envoy completes and deferred-deletes the ActiveRequest...

EUVD-2026-84103

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 forwards data for a configured non-WebSocket HTTP upgrade before the upstream accepts the upgrade. An unauthenticated HTTP/2 client can place a complete...

CVE-2026-73548 Envoy: Cross-user response poisoning via a generic (non-WebSocket) HTTP upgrade on Envoy's shared backend pool

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 forwards data for a configured non-WebSocket HTTP upgrade before the upstream accepts the upgrade. An unauthenticated HTTP/2 client can place a complete...