CVE-2026-42395

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the process that merges HTTP/1.1 chunked-body trailer fields into Request.headers. An attacker can inject arbitrary HTTP headers by sending specially crafted trailer fields, potentially bypassing header-based...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the process that merges HTTP/1.1 chunked-body trailer fields into Request.headers. An attacker can inject arbitrary HTTP headers by sending specially crafted trailer fields, potentially bypassing header-based...

blaze: Chunked-body trailer fields promoted into Request.headers in blaze-server (front-end header-sanitization bypass)

Summary blaze-server can merge HTTP/1.1 chunked-body trailer fields into Request.headers. Because trailer fields are attacker-controlled, an unauthenticated remote client can inject arbitrary header names/values e.g. X-Forwarded-For, internal-auth headers that a fronting proxy sanitized from the...

Gitea Docker image: `REVERSE_PROXY_TRUSTED_PROXIES = *` default lets any source IP impersonate any user via `X-WEBAUTH-USER`

Summary The Gitea Docker images ship an app.ini template that hard-codes: REVERSEPROXYTRUSTEDPROXIES = The documented default for this setting, in custom/conf/app.example.ini, is 127.0.0.0/8,::1/128, i.e. only loopback is trusted. When an admin enables ENABLEREVERSEPROXYAUTHENTICATION = true to p...

GHSA-7CFM-PQRJ-XGQ7 9router: Login brute-force protection bypass via spoofed X-Forwarded-For header

Summary The 9router dashboard login rate limiter derives the client identity from the attacker-controlled X-Forwarded-For HTTP header. When 9router is directly exposed, or deployed behind a reverse proxy that does not overwrite untrusted forwarding headers, a remote attacker can rotate the...

9router: Login brute-force protection bypass via spoofed X-Forwarded-For header

Summary The 9router dashboard login rate limiter derives the client identity from the attacker-controlled X-Forwarded-For HTTP header. When 9router is directly exposed, or deployed behind a reverse proxy that does not overwrite untrusted forwarding headers, a remote attacker can rotate the...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to the default configuration of REVERSEPROXYTRUSTEDPROXIES allowing all sources. An attacker can gain unauthorized access by sending spoofed reverse-proxy authentication headers such as X-WEBAUTH-USER...

CVE-2026-20896 Gitea Docker image trusts spoofable reverse-proxy headers by default

Gitea Docker image versions up to and including 1.26.2 use REVERSEPROXYTRUSTEDPROXIES= by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled...

Updated putty packages fix security vulnerabilities

ECDSA signature verification can be made to fail an assertion. Server can provoke a double free in RSA KEX code. Telnet session data is marked with trust sigils after authenticating to a proxy. PuTTY Ed25519 Signature ecc-ssh.c eddsaverify signature verification. CVE-2026-4115...

putty -- multiple security vulnerabilities

Simon Tatham reports: These features are new in PuTTY 0.84: Security issue: fixed a remotely triggerable double-free in RSA key exchange. We don't know of any way it is exploitable to execute code. Minor security issue: fixed a remotely triggerable crash in NIST ECDSA signature verification. An...

CVE-2026-32881

ewe is a Gleam web server. ewe is a Gleam web server. Versions 0.6.0 through 3.0.4 are vulnerable to authentication bypass or spoofed proxy-trust headers. Chunked transfer encoding trailer handling merges declared trailer fields into req.headers after body parsing, but the denylist only blocks 9...

CVE-2026-32881

ewe is a Gleam web server. ewe is a Gleam web server. Versions 0.6.0 through 3.0.4 are vulnerable to authentication bypass or spoofed proxy-trust headers. Chunked transfer encoding trailer handling merges declared trailer fields into req.headers after body parsing, but the denylist only blocks 9...

CVE-2026-32881 ewe has an Overly Permissive List of Allowed Inputs

ewe is a Gleam web server. ewe is a Gleam web server. Versions 0.6.0 through 3.0.4 are vulnerable to authentication bypass or spoofed proxy-trust headers. Chunked transfer encoding trailer handling merges declared trailer fields into req.headers after body parsing, but the denylist only blocks 9...

SUSE CVE-2025-66508

1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.14 and below use Gin's default configuration which trusts all IP addresses as proxies TrustedProxies = 0.0.0.0/0, allowing any client to spoof the X-Forwarded-For header. Since all IP-based access controls...

PT-2025-51338

Name of the Vulnerable Software and Affected Versions Misskey versions 2025.9.1 through 2025.11.1 Misskey versions prior to 2025.12.0-alpha.2 Description Misskey is an open source, federated social media platform. Attackers can bypass IP rate limiting by adding a forged X-Forwarded-For header whe...

CVE-2025-66508

1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.14 and below use Gin's default configuration which trusts all IP addresses as proxies TrustedProxies = 0.0.0.0/0, allowing any client to spoof the X-Forwarded-For header. Since all IP-based access controls...

CVE-2025-66508 1Panel IP Access Control Bypass via Untrusted X-Forwarded-For Headers

1Panel is an open-source, web-based control panel for Linux server management. Versions 2.0.14 and below use Gin's default configuration which trusts all IP addresses as proxies TrustedProxies = 0.0.0.0/0, allowing any client to spoof the X-Forwarded-For header. Since all IP-based access controls...

1Panel 安全漏洞

1Panel is an open source Linux server operations and management panel for the Chinese 1Panel community. A security vulnerability exists in 1Panel version 2.0.14 and earlier, which stems from trusting all proxy IPs and could lead to IP spoofing and security control bypass...

PT-2025-49760

Name of the Vulnerable Software and Affected Versions 1Panel versions 2.0.14 and below Description 1Panel is a web-based control panel for Linux server management. Versions 2.0.14 and below are configured to trust all IP addresses as proxies, allowing attackers to spoof the X-Forwarded-For header...