Rocky Linux 10.2 [CIQ] Security Update: mod_http2 / mod_http2-debuginfo / mod_http2-debugsource (crlsa-2026_25225)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202625225 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block...

Rocky Linux 8 [CIQ] Security Update: httpd / httpd-debuginfo / httpd-debugsource / httpd-devel / etc (crlsa-2026_25090)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202625090 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block direct...

Rocky Linux 9 [CIQ] Security Update: mod_http2 / mod_http2-debuginfo / mod_http2-debugsource (crlsa-2026_25057)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202625057 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block direct...

Oracle Linux 10 : mod_http2 (ELSA-2026-25225)

The remote Oracle Linux 10 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2026-25225 advisory. - Resolves: RHEL-188008 - address CVE-2026-43951, CVE-2026-48913 - Resolves: RHEL-182410 - modhttp2: HTTP/2: Remote Denial of Service via compression bomb and...

DEBIAN-CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

UBUNTU-CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-54340: Uncontrolled Resource Consumption

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-54340

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

CVE-2026-54340

CVE-2026-54340 affects the h2o HTTP server (HTTP/2) and describes an HTTP/2 state amplification issue where HPACK decompression amplification combines with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams; depending on configuration, additi...

CVE-2026-54340 h2o has HTTP/2 state amplification

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 9265bdd, there is an HTTP/2 state amplification issue that combines HPACK decompression amplification with Slowloris-style stream stalling. Amplified decoded header state can be retained by stalled HTTP/2 streams,...

PT-2026-60605

Name of the Vulnerable Software and Affected Versions h2o versions prior to commit 9265bdd Description An HTTP/2 state amplification issue exists that combines HPACK decompression amplification with Slowloris-style stream stalling. This allows amplified decoded header state to be retained by...

Important: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.2.6

Red Hat OpenShift Service Mesh 3.2.6 This update has a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section. Red Hat OpenShift Service Mesh 3.2....

mod_http2 security update

An update is available for modhttp2. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of...

RockyLinux 8 : httpd:2.4 (RLSA-2026:25090)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:25090 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block...

httpd: httpd: HTTP/2 Remote Denial of Service via compression bomb and Slowloris-style attack

A flaw was found in HTTP/2, affecting various web servers. A remote attacker can exploit this vulnerability by combining an HPACK compression bomb with a zero-byte flow-control window. This technique allows a small amount of data to expand into large memory allocations on the server, which are th...

httpd: httpd: HTTP/2 Remote Denial of Service via compression bomb and Slowloris-style attack

A flaw was found in HTTP/2, affecting various web servers. A remote attacker can exploit this vulnerability by combining an HPACK compression bomb with a zero-byte flow-control window. This technique allows a small amount of data to expand into large memory allocations on the server, which are th...

RHEL 9 : mod_http2 (RHSA-2026:25057)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:25057 advisory. The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers. Security Fixes: httpd: HTTP/2: Remote...

CVE-2026-26999

CVE-2026-26999 (Traefik) : A TLS handshake handling flaw on TCP routers may cause handshake stalls. When Traefik processes a TLS connection on a TCP router, the read deadline used for protocol sniffing can be cleared before the TLS handshake completes. If a TLS handshake read error occurs, the co...