GO-2026-6089 Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...

Denial of Service (DoS)

Overview std/net/http is a Go standard library package std/net/http Affected versions of this package are vulnerable to Denial of Service DoS. Go Vulnerability Report:When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain th...

Moderate: Red Hat Security Advisory: nghttp2 security update

An update for nghttp2 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

K000162917: Node.JS vulnerability CVE-2026-56848

Security Advisory Description A flaw in Node.js HTTP/2 handling allows nghttp2sessionmemsend to be called re-entrantly while nghttp2sessionmemrecv is executing, resulting in a heap-use-after-free. This vulnerability affects Node.js 26.x, 24.x, and 22.x. CVE-2026-56848 Impact There is no impact; F...

K000162915: libcurl vulnerability CVE-2026-10536

Security Advisory Description A use-after-free vulnerability exists in libcurl when an application configures an HTTP/2 stream-dependency tree via CURLOPTSTREAMDEPENDS or CURLOPTSTREAMDEPENDSE, subsequently invokes curleasyreset, and finally terminates the handle with curleasycleanup. During this...

CVE-2026-48937

A flaw in the Node.js HTTP/2 API allows remote attackers to cause a Denial of Service DoS by sending data after a GOAWAY frame, exhausting server resources. Mitigation Restrict Node.js HTTP/2 servers to trusted clients with host firewall or network segmentation. If HTTP/2 is not required, disable...

org.apache.httpcomponents.core5/httpcore5-h2: Apache HttpComponents Core: Denial of Service via oversized HTTP/2 HPACK header blocks

A flaw was found in Apache HttpComponents Core. This vulnerability, located in the HTTP/2 HPACK decoder, allows a remote attacker to cause a denial of service. By sending oversized compressed header blocks, an attacker can exhaust memory resources before the system's configured header list size...

PT-2026-71895

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. During this process,...

Moderate: nghttp2 security update

libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 HTTP/2 protocol in C. Security Fixes: nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 For more details about the security issues,...

openSUSE 16 Security Update : nodejs24 (openSUSE-SU-2026:21546-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21546-1 advisory. Update to 24.18.1. - CVE-2026-54272: ip-address: misclassification of IPv4-mapped/NAT64 IPv6 addresses allows for bypass of SSRF and trust-...

RHEL 9 : nghttp2 (RHSA-2026:54662)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:54662 advisory. libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 HTTP/2 protocol in C. Security Fixes: nghttp2: nghttp2: HTTP...

openSUSE 16 Security Update : nodejs22 (openSUSE-SU-2026:21545-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21545-1 advisory. Update to 22.23.2. - CVE-2026-54272: ip-address: misclassification of IPv4-mapped/NAT64 IPv6 addresses allows for bypass of SSRF and trust-...

CVE-2026-56853: Allocation of Resources Without Limits or Throttling

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this...

GLSA-202608-05 : Apache HTTPD: Multiple Vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202608-05 Apache HTTPD: Multiple Vulnerabilities Multiple vulnerabilities have been discovered in Apache HTTPD. Please review the CVE identifiers referenced below for details. Tenable has extracted the preceding description block...

io.netty/netty-codec-http2: Netty: Denial of Service via HTTP/2 DATA frame memory leak

A flaw was found in Netty, a network application framework. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP/2 DATA frames to applications that use Netty and have HTTP/2 content decompression enabled. This can lead to memory exhaustion, causing t...

CVE-2018-16844

creationtimestamp| type| source ---|---|--- 2026-08-12 17:00:04+00:00| published-proof-of-concept| Telegram/JXwhaG7Kk3-6UOVRR1APiaO6CTcjXaQDI8i4is7Q1Jd9s 2026-08-12 17:00:04+00:00| seen| Telegram/C6vVyMDURhpvZI0H3EkJps5fsiSVlluQ8gZPOZtlvYIjgA 2026-08-13 00:00:07+00:00| published-proof-of-concept|...

Security Bulletin: IBM Planning Analytics Local is affected by security vulnerabilities

Summary The Planning Analytics Workspace component of IBM Planning Analytics is affected by security vulnerabilities. These vulnerabilities have been addressed in IBM Planning Analytics Local v2.0 - IBM Planning Analytics Workspace version 2.1.23. Vulnerability Details CVEID:CVE-2026-47244...

Denial-of-service (DoS)

Apache HttpComponents Core is vulnerable to a denial-of-service DoS vulnerability. The vulnerability is due to the decoder processing oversized compressed HTTP/2 header blocks without applying the configured header list size limit until the SETTINGS acknowledgement, which allows a remote attacker...

Security Bulletin:Vulnerability in Netty affects IBM Netezza Appliance

Summary The Netty package is used by IBM Netezza Appliance. IBM Netezza Appliance has addressed the applicable CVECVE-2026-50560 Vulnerability Details CVEID:CVE-2026-50560 DESCRIPTION: Netty is a network application framework for development of protocol servers and clients. Prior to versions...

Security Bulletin:Vulnerability in curl affects IBM Netezza Appliance

Summary The curl package is used by IBM Netezza Appliance. IBM Netezza Appliance has addressed the applicable CVECVE-2026-10536 Vulnerability Details CVEID:CVE-2026-10536 DESCRIPTION: A use-after-free vulnerability exists in libcurl when an application configures an HTTP/2 stream-dependency tree...