RHSA-2026:54550 Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update

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net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution

A flaw was found in net/url, a component of golang. This vulnerability arises when resolving relative paths that contain numerous parent directory '..' segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory...

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...

net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution

A flaw was found in net/url, a component of golang. This vulnerability arises when resolving relative paths that contain numerous parent directory '..' segments. A remote attacker could exploit this by providing a specially crafted path, leading to quadratic time complexity and excessive memory...

Oracle Linux 8 : .NET / 10.0 (ELSA-2026-54542)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-54542 advisory. 10.0.111-1.0.1 - Add support for Oracle Linux 10.0.111-1 - Update to .NET SDK 10.0.111 and Runtime 10.0.11 - Resolves: RHEL-235478 Tenable has extract...

AlmaLinux 10 : .NET 8.0 (ALSA-2026:54541)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:54541 advisory. .NET: .NET Core: .NET Security Feature Bypass Vulnerability CVE-2026-62899 .NET: .NET Information Disclosure Vulnerability CVE-2026-62900 .NET: .NET...

AlmaLinux 8 : .NET 8.0 (ALSA-2026:54538)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:54538 advisory. .NET: .NET Core: .NET Security Feature Bypass Vulnerability CVE-2026-62899 .NET: .NET Information Disclosure Vulnerability CVE-2026-62900 .NET: .NET Deni...

RockyLinux 10 : .NET 9.0 (RLSA-2026:54590)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:54590 advisory. .NET: .NET Core: .NET Security Feature Bypass Vulnerability CVE-2026-62899 .NET: .NET Information Disclosure Vulnerability CVE-2026-62900 .NET: .NET...

Oracle Linux 8 : .NET / 8.0 (ELSA-2026-54538)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-54538 advisory. 8.0.130-1.0.1 - Add support for Oracle Linux 8.0.130-1 - Update to .NET SDK 8.0.130 and Runtime 8.0.30 - Resolves: RHEL-235468 Tenable has extracted t...

MiracleLinux 9 : ruby:4.0 (AXSA:2026-1542:01)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1542:01 advisory. ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via...

The vulnerability in the `net/sched/sch_qfq.c` component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the net/sched/schqfq.c component in the Linux operating system is related to improper control over resources throughout its lifecycle. Exploiting this vulnerability can allow an attacker to cause service failures...

Oracle Linux 10 : .NET / 9.0 (ELSA-2026-54590)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-54590 advisory. 9.0.120-1.0.1 - Add support for Oracle Linux 9.0.120-1 - Update to .NET SDK 9.0.120 and Runtime 9.0.19 - Resolves: RHEL-235477 Tenable has extracted...

Oracle Linux 9 : .NET / 8.0 (ELSA-2026-54574)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-54574 advisory. 8.0.130-1.0.1 - Add support for Oracle Linux 8.0.130-1 - Update to .NET SDK 8.0.130 and Runtime 8.0.30 - Resolves: RHEL-235471 Tenable has extracted t...

MiracleLinux 9 : ruby:3.3 (AXSA:2026-1541:01)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1541:01 advisory. ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses CVE-2026-42245 ruby/net-imap: ruby: Net::IMAP: IMAP Command Injection via...

RockyLinux 10 : .NET 8.0 (RLSA-2026:54541)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:54541 advisory. .NET: .NET Core: .NET Security Feature Bypass Vulnerability CVE-2026-62899 .NET: .NET Information Disclosure Vulnerability CVE-2026-62900 .NET: .NET...

RockyLinux 8 : .NET 8.0 (RLSA-2026:54538)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:54538 advisory. .NET: .NET Core: .NET Security Feature Bypass Vulnerability CVE-2026-62899 .NET: .NET Information Disclosure Vulnerability CVE-2026-62900 .NET: .NET...

AlmaLinux 10 : .NET 9.0 (ALSA-2026:54590)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:54590 advisory. .NET: .NET Core: .NET Security Feature Bypass Vulnerability CVE-2026-62899 .NET: .NET Information Disclosure Vulnerability CVE-2026-62900 .NET: .NET...

AlmaLinux 8 : .NET 9.0 (ALSA-2026:54550)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:54550 advisory. .NET: .NET Core: .NET Security Feature Bypass Vulnerability CVE-2026-62899 .NET: .NET Information Disclosure Vulnerability CVE-2026-62900 .NET: .NET Deni...

golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing

A flaw was found in golang.org/x/net/idna. ToASCII and ToUnicode incorrectly accept Punycode-encoded labels that decode to an ASCII-only hostname for example, xn--example-.com returns example.com instead of an error. Applications that validate the ASCII form then convert to Unicode may grant acce...