CVE-2026-86196 Grav API Plugin before 1.0.20 Authentication Bypass via Host Header

Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious...

EUVD-2026-71998

Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious...

CVE-2026-86196 Grav API Plugin before 1.0.20 Authentication Bypass via Host Header

Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious...

CVE-2026-86196

Grav API Plugin versions before 1.0.20 are vulnerable to an authentication bypass via the Host header in the forgot-password endpoint. The plugin builds password reset links from this untrusted header, allowing an unauthenticated attacker to redirect reset tokens to attacker-controlled domains, l...

CVE-2026-86196: Authentication Bypass by Spoofing

Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious...

PT-2026-86421

Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious...

SUSE-SU-2026:3972-1 Security update for python-h2

This update for python-h2 fixes the following issue: - CVE-2026-71554: duplicate Host headers are accepted and forwarded to consuming applications, which can lead to request smuggling bsc1274386...

Security update for python-h2

This update for python-h2 fixes the following issue: CVE-2026-71554: duplicate Host headers are accepted and forwarded to consuming applications, which can lead to request smuggling bsc1274386. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST...

ALCASAR Host Header RCE

Exploits ALCASAR command injection via a crafted Host header on /alcasar/index.php. Opens an interactive execute session. !/usr/bin/env python3 -- coding: utf-8 -- """ALCASAR Host header command injection RCE — execute session.""" from future import annotations import re from kittysploit import...

CVE-2026-81092

A flaw was found in mcp-go. This component failed to validate the Host header in HTTP requests, specifically within its StreamableHTTPServer and SSEServer transports. A remote attacker could exploit this by using a crafted web page to perform a DNS rebinding attack. This allows the attacker to...

SUSE CVE-2026-81092

mcp-go accepted requests on its HTTP transports without checking the Host header. StreamableHTTPServer.ServeHTTP in server/streamablehttp.go and SSEServer.ServeHTTP in server/sse.go served any request arriving over a loopback connection regardless of the host it named, and the SSE transport's...

github.com/mark3labs/mcp-go: mcp-go: DNS Rebinding vulnerability due to missing Host header validation

A flaw was found in mcp-go. This component failed to validate the Host header in HTTP requests, specifically within its StreamableHTTPServer and SSEServer transports. A remote attacker could exploit this by using a crafted web page to perform a DNS rebinding attack. This allows the attacker to...

github.com/mark3labs/mcp-go: mcp-go: DNS Rebinding vulnerability due to missing Host header validation

A flaw was found in mcp-go. This component failed to validate the Host header in HTTP requests, specifically within its StreamableHTTPServer and SSEServer transports. A remote attacker could exploit this by using a crafted web page to perform a DNS rebinding attack. This allows the attacker to...

CVE-2026-71554

A flaw was found in h2, a Python library for HTTP/2. This vulnerability allows a remote attacker to perform request smuggling. The library incorrectly processes HTTP/2 requests that contain more than one Host header. When these requests are downgraded to HTTP/1.1 by a consuming application, the...

openSUSE 16 Security Update : python-h2 (openSUSE-SU-2026:21693-1)

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21693-1 advisory. This update for python-h2 fixes the following issue: - CVE-2026-71554: duplicate Host headers are accepted and forwarded to consuming applications, whic...

CVE-2025-71405

A flaw was found in go-chi/chi. The RedirectSlashes middleware function incorrectly uses the Host header to build redirect URLs. A remote attacker can manipulate the Host header to redirect users to arbitrary malicious websites. This can lead to phishing attacks and credential theft. Mitigation...

Exploit for Incomplete Filtering of Special Elements in Axis Axis_Os

CVE-2025-0324 — Root Cause Analysis A client-controlled Ho...

CVE-2026-82726

Permissive Regular Expression vulnerability in ash-project ashphoenix lets a remote client select the tenant an Ash application uses, or degrade the request, by sending a crafted Host header. AshPhoenix.Helpers.getsubdomain/2 stripped the root domain with String.replacehost, r/.?roothost/, "". Th...

CVE-2026-82726 AshPhoenix get_subdomain maps a crafted or differently-cased Host header to an arbitrary tenant

Permissive Regular Expression vulnerability in ash-project ashphoenix lets a remote client select the tenant an Ash application uses, or degrade the request, by sending a crafted Host header. AshPhoenix.Helpers.getsubdomain/2 stripped the root domain with String.replacehost, r/.?roothost/, "". Th...

EUVD-2026-68335

Permissive Regular Expression vulnerability in ash-project ashphoenix lets a remote client select the tenant an Ash application uses, or degrade the request, by sending a crafted Host header. AshPhoenix.Helpers.getsubdomain/2 stripped the root domain with String.replacehost, r/.?roothost/, "". Th...