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...

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...

PT-2026-72036

A flaw was found in Undertow, an HTTP server, within its HTTP response header writing path. The writeString method performs a silent narrowing cast from 16-bit Unicode characters to 8-bit bytes when writing HTTP response header values. A remote attacker can exploit this by supplying specific...

MiracleLinux 8 : freerdp-2.11.7-11.el8_10 (AXSA:2026-1534:25)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1534:25 advisory. FreeRDP: FreeRDP: Arbitrary code execution via malicious RDP files CVE-2026-64624 FreeRDP: FreeRDP: Denial of Service via crafted WindowIcon async...

RockyLinux 9 : nghttp2 (RLSA-2026:54662)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:54662 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

RockyLinux 9 : freerdp (RLSA-2026:54487)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:54487 advisory. FreeRDP: FreeRDP: Arbitrary code execution via malicious RDP files CVE-2026-64624 FreeRDP: FreeRDP: Denial of Service via crafted WindowIcon async messa...

Oracle Linux 9 : nghttp2 (ELSA-2026-54662)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-54662 advisory. 1.43.0-6.2 - fix HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

Linux Distros Unpatched Vulnerability : CVE-2026-73051

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and...

Security Updates for Azure CycleCloud < 8.9.1

The Azure CycleCloud product is missing a security update. It is, therefore, affected by the following vulnerabilities: - Missing authentication for critical function in Azure CycleCloud allows an authorized attacker to elevate privileges over a network. CVE-2026-57969 - An improper input...

AlmaLinux 10 : nghttp2 (ALSA-2026:54650)

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:54650 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

AlmaLinux 9 : freerdp (ALSA-2026:54487)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:54487 advisory. FreeRDP: FreeRDP: Arbitrary code execution via malicious RDP files CVE-2026-64624 FreeRDP: FreeRDP: Denial of Service via crafted WindowIcon async messag...

AlmaLinux 9 : nghttp2 (ALSA-2026:54662)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:54662 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

RockyLinux 10 : nghttp2 (RLSA-2026:54650)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:54650 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

PT-2026-76566

Name of the Vulnerable Software and Affected Versions fabric-ca affected versions not specified Description When configured with an LDAP backend, the software fails to properly escape the username obtained from HTTP Basic authentication before including it in an LDAP uid search filter. This allow...

PT-2026-72011

actix-http versions before 3.12.1 contain an HTTP request smuggling vulnerability in the HTTP/1.1 parser that accepts requests with both Content-Length and Transfer-Encoding: chunked headers. Unauthenticated remote attackers can exploit this through a front-end intermediary to desynchronize backe...

Linux Distros Unpatched Vulnerability : CVE-2026-56853

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Oracle Linux 10 : nghttp2 (ELSA-2026-54650)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-54650 advisory. 1.68.0-3.2 - fix HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

Linux Distros Unpatched Vulnerability : CVE-2026-19879

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Undertow, an HTTP server, within its HTTP response header writing path. The writeString method performs a silent narrowing cast from 16-bit...

RockyLinux 8 : freerdp (RLSA-2026:54485)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:54485 advisory. FreeRDP: FreeRDP: Arbitrary code execution via malicious RDP files CVE-2026-64624 FreeRDP: FreeRDP: Denial of Service via crafted WindowIcon async messa...

Golang 1.25.x < 1.25.13 / 1.26.x < 1.26.6 Multiple Vulnerabilities

The version of Golang running on the remote host is 1.25.x prior to 1.25.13, or 1.26.x prior to 1.26.6. It is, therefore, affected by multiple vulnerabilities in the standard library and the toolchain, as referenced in the golang-announce advisory. - The ToASCII and ToUnicode functions incorrectl...