CVE-2026-78663: Multiple Operations on Resource in Single-Operation Context

The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream refunding data for any sent-but-unread portion of the stream, and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configur...

Ubuntu 22.04 LTS : Go Networking vulnerabilities (USN-8900-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8900-1 advisory. It was discovered that Go Networking did not properly handle server errors after sending a GOAWAY frame during HTTP/2 connection shutdown, which could...

Important: mod_auth_openidc security update

The modauthopenidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server. Security Fixes: modauthopenidc: modauthopenidc: Denial of Service via malformed state cookie parsi...

Debian dla-4827 : idle-python3.11 - security update

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4827 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4827-1 [email protected]...

EulerOS 2.0 SP15 : mod_http2 (EulerOS-SA-2026-3992)

According to the versions of the modhttp2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

CVE-2026-78399: Allocation of Resources Without Limits or Throttling

IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow an authenticated user to cause a denial of service using a specially crafted HTTP query due to improper allocation of system resources...

CVE-2026-87671: Out-of-bounds Read

An out-of-bounds memory read vulnerability exists in the web management daemon of Brocade Fabric OS versions before 10.0.1. Unauthenticated HTTP endpoints process specific URL query parameters without validating array index boundaries or performing numerical range checks. An unauthenticated remot...

EulerOS 2.0 SP15 : mod_http2 (EulerOS-SA-2026-3926)

According to the versions of the modhttp2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's modhttp leads to denial of service via malicious HTTP...

EulerOS 2.0 SP15 : perl-HTTP-Tiny (EulerOS-SA-2026-4004)

According to the versions of the perl-HTTP-Tiny packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : HTTP::Tiny versions before 0.095 for Perl forward credential headers to cross-origin redirect targets.x000D x000D When the server returns ...

EulerOS 2.0 SP15 : perl-HTTP-Tiny (EulerOS-SA-2026-3938)

According to the versions of the perl-HTTP-Tiny packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : HTTP::Tiny versions before 0.095 for Perl forward credential headers to cross-origin redirect targets.x000D x000D When the server returns ...

CVE-2026-78660: Inconsistent Interpretation of HTTP Requests

Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a...

CVE-2026-78669: Asymmetric Resource Consumption (Amplification)

A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGSINITIALWINDOWSIZE values...

CVE-2026-97032: Concurrent Execution using Shared Resource with Improper Synchronization

HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the...

CVE-2026-94439: Inconsistent Interpretation of HTTP Requests

When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server...

CVE-2026-78669: Asymmetric Resource Consumption (Amplification)

A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGSINITIALWINDOWSIZE values...

CVE-2026-56866: Inconsistent Interpretation of HTTP Requests

When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CONNECT request with a non-2xx keep-alive response, Transport returns the connection to the idle...

CVE-2026-94439: Inconsistent Interpretation of HTTP Requests

When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server...

CVE-2026-97032: Concurrent Execution using Shared Resource with Improper Synchronization

HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the...

CVE-2026-78659: Asymmetric Resource Consumption (Amplification)

When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending ...

openSUSE 16 Security Update : prometheus-blackbox_exporter (openSUSE-SU-2026:22026-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:22026-1 advisory. Changes in prometheus-blackboxexporter: - CVE-2026-84304: Fix heap memory exhaustion OOM via HTTP/2 DATA frame fragmentation in gRPC-Go by bumpi...