CVE-2026-19012 Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path

Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a...

EUVD-2026-54606

Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a...

CVE-2026-19012

Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a...

CVE-2026-19012

An authenticated denial of service affects Consul Community Edition and Consul Enterprise versions 1.18.0–2.0.2 via the Enterprise-to-Community downgrade path. A caller with config-entry write permission can submit a service-router configuration entry that causes the agent to exit unexpectedly, l...

CVE-2026-19012 Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path

Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a...

CVE-2026-19012 Authenticated denial of service in Consul Enterprise-to-Community Edition downgrade path

Consul Community Edition and Consul Enterprise 1.18.0 through 2.0.2 are vulnerable to an authenticated denial of service in the Enterprise-to-Community Edition downgrade path that may allow an authorized caller to crash the Consul server. A caller with config-entry write permission can submit a...

Multiple vulnerabilities impacting HashiCorp Consul

Summary Consul Community Edition and Consul Enterprise are affected by eight vulnerabilities. CVE-2026-19012 is an authenticated denial of service in the Enterprise-to-Community Edition downgrade path. CVE-2026-19014 is an uncontrolled resource consumption issue in the Connect authorization...

CVE-2026-71554

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

UBUNTU-CVE-2026-71554

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

h2: Duplicate Host header could facilitate request smuggling

Impact h2 =4.4.0 accepts request header blocks containing more than one Host header, and forwards every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request carries two Host header lines, which is a request smuggling primitive CWE-444...

EUVD-2026-54177

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

CVE-2026-71554

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

CVE-2026-71554 h2: Duplicate Host header could facilitate request smuggling

h2 is a pure-Python implementation of a HTTP/2 protocol stack. Versions up to and including 4.4.0 accept request header blocks containing more than one Host header, and forward every Host header to the consuming application. Where the consumer downgrades HTTP/2 to HTTP/1.1, the resulting request...

MITM (Man-in-the-Middle) org.postgresql:postgresql Dependency in Jira Software Data Center

This High severity MITM Man-in-the-Middle vulnerability was introduced in versions 9.12.37, 10.3.23, and 11.3.8 of Jira Software Data Center. This MITM Man-in-the-Middle vulnerability, with a CVSS Score of 8.2 and a CVSS Vector of CVSS:4.0/AV:N/AC:H/AT: P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N...

PYSEC-2026-3587 ONNX: Heap-Buffer-Overflow READ in Gemm Version Converter Adapter via Undersized Input Shape

Summary Heap-buffer-overflow READ 16 bytes in Gemm76::adaptgemm76 onnx/versionconverter/adapters/gemm76.h:41 when ConvertVersion processes a model with a Gemm node whose input tensors have fewer than 2 dimensions. The adapter accesses Bshape1 without checking rank. On Release builds the OOB read ...

Security update for perl-HTTP-Tiny (important)

openSUSE Security Update: Security update for perl-HTTP-Tiny Announcement ID: openSUSE-SU-2026:0274-1 Rating: important References: 1271020 Cross-References: CVE-2026-7017 Affected Products: openSUSE Backports SLE-15-SP7 An update that fixes one vulnerability is now available. Description: This...

SUSE SLES15 Security Update : libssh (SUSE-SU-2026:3463-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3463-1 advisory. - CVE-2026-59843: denial of service via zero advertised channel packet size bsc1272164. - CVE-2026-59844: denial of service via...

CVE-2026-53712

A flaw was found in the SCRAM Salted Challenge Response Authentication Mechanism client and common libraries. An attacker performing a man-in-the-middle MITM attack on a Transport Layer Security TLS connection can silently downgrade the authentication process. This vulnerability allows the attack...

Security update for libssh

This update for libssh fixes the following issues: CVE-2026-59843: denial of service via zero advertised channel packet size bsc1272164. CVE-2026-59844: denial of service via oversized SFTP read length bsc1272165. CVE-2026-59845: denial of service via unchecked ProxyCommand fork failure bsc127216...

SUSE-SU-2026:3463-1 Security update for libssh

This update for libssh fixes the following issues: - CVE-2026-59843: denial of service via zero advertised channel packet size bsc1272164. - CVE-2026-59844: denial of service via oversized SFTP read length bsc1272165. - CVE-2026-59845: denial of service via unchecked ProxyCommand fork failure...