Improper Handling of Highly Compressed Data (Data Amplification)

Overview io.netty:netty-codec-http2 is a HTTP2 sub package for the netty library, an event-driven asynchronous network application framework. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the HttpContentDecompressor and...

Netty: HttpContentDecompressor maxAllocation bypass when Content-Encoding set to br/zstd/snappy leads to decompression bomb DoS

Summary HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate encodings via ZlibDecoder, but is silently ignored when the content encoding is br Brotli, zstd, or...

GHSA-F6HV-JMP6-3VWV Netty: HttpContentDecompressor maxAllocation bypass when Content-Encoding set to br/zstd/snappy leads to decompression bomb DoS

Summary HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is correctly enforced for gzip and deflate encodings via ZlibDecoder, but is silently ignored when the content encoding is br Brotli, zstd, or...

CLSA-2026-1778107793 qt5-qtbase: Fix of 3 CVEs

CVE-2025-5455: fix qDecodeDataUrl crash on malformed data URL with charset - CVE-2024-25580: fix KTX file reading buffer overflow - CVE-2024-39936: delay HTTP/2 communication until encrypted can be responded to includes prerequisite to emit encrypted on H2 path...

USN-8239-1 apache2 vulnerabilities

Bartlomiej Dmitruk and Stanislaw Strzalkowski discovered that Apache HTTP Server incorrectly handled certain memory operations when using the HTTP/2 protocol. A remote attacker could use this issue to cause Apache HTTP Server to crash, resulting in a denial of service, or possibly execute arbitra...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

Exploit for Double Free in Apache Http_Server

This is a proactive tool for security auditing. For your GitHub...

RHCOS 3 : OpenShift Container Platform 3.10 (RHSA-2019:2690)

The remote Red Hat Enterprise Linux CoreOS 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:2690 advisory. - HTTP/2: flood using PING frames results in unbounded memory growth CVE-2019-9512 - HTTP/2: flood using HEADERS frames results in...

RHCOS 4 : OpenShift Container Platform 4.4.3 haproxy (RHSA-2020:1936)

The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:1936 advisory. - haproxy: HTTP request smuggling issue with transfer-encoding header containing an obfuscated chunked value CVE-2019-18277 - haprox...

RHCOS 3 : OpenShift Container Platform 3.9 (RHSA-2019:2769)

The remote Red Hat Enterprise Linux CoreOS 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:2769 advisory. - HTTP/2: flood using PING frames results in unbounded memory growth CVE-2019-9512 - HTTP/2: flood using HEADERS frames results in...

SUSE-SU-2026:21490-1 Security update for containerd

This update for containerd fixes the following issue: - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2 :path pseudo-header bsc1260296...

BIT-APACHE-2026-23918 Apache HTTP Server: http2: double free and possible RCE on early reset

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue...

SUSE CVE-2026-23918

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue...

Security Bulletin:Axios HTTP/2 Session Cleanup Logic State Corruption Bug Fixed in 1.13.2

Summary Axios is a promise based HTTP client for the browser and Node.js. Starting in version 1.13.0 and prior to 1.13.2, Axios HTTP/2 session cleanup logic contains a state corruption bug that allows a malicious server to crash the client process through concurrent session closures. The...

RHCOS 3 : OpenShift Container Platform 3.10 haproxy (RHSA-2019:0548)

The remote Red Hat Enterprise Linux CoreOS 3 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2019:0548 advisory. - haproxy: Mishandling of priority flag in short HEADERS frame by HTTP/2 decoder allows for crash CVE-2018-20615 Note that Nessus has not...

RHCOS 4 : OpenShift Container Platform 4.14.2 (RHSA-2023:6839)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:6839 advisory. - golang: net/http, x/net/http2: rapid stream resets can cause excessive work CVE-2023-44487 CVE-2023-39325 - HTTP/2: Multiple HTTP/...

CVE-2026-42788 HTTP/2 frame size limit checked after body is buffered in bandit

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated memory exhaustion via oversized HTTP/2 frames. 'Elixir.Bandit.HTTP2.Frame':deserialize/2 in lib/bandit/http2/frame.ex checks the SETTINGSMAXFRAMESIZE limit only after pattern-matching...

CVE-2026-42788

The CVE-2026-42788 affects the Elixir Bandit project: Bandit::HTTP2.Frame::deserialize/2 currently buffers an entire HTTP/2 frame before enforcing SETTINGS_MAX_FRAME_SIZE, enabling unauthenticated attackers with many concurrent connections to cause memory pressure and DoS by oversized frames. Aff...

PT-2026-36544

Name of the Vulnerable Software and Affected Versions bandit versions 0.3.6 through 1.10.x Description An issue in the deserialize/2 function within Elixir.Bandit.HTTP2.Frame allows unauthenticated memory exhaustion through oversized HTTP/2 frames. The system checks the SETTINGS MAX FRAME SIZE...