Fabio - Incomplete fix for CVE-2025-48865: operator-configured trust headers (clientip/tls/requestid) still strippable via the Connection header

Affected: github.com/fabiolb/fabio = 1.6.6 through 1.7.1 and master HEAD c75f8a6. Summary The v1.6.6 fix for CVE-2025-48865 sweeps the client Connection header against a hardcoded allowlist protectHeaders proxy/httpheaders.go:28-36 containing only the 7 X-Forwarded family headers. Fabio also...

GHSA-FQ95-V8XC-JM3V Fabio - Incomplete fix for CVE-2025-48865: operator-configured trust headers (clientip/tls/requestid) still strippable via the Connection header

Affected: github.com/fabiolb/fabio = 1.6.6 through 1.7.1 and master HEAD c75f8a6. Summary The v1.6.6 fix for CVE-2025-48865 sweeps the client Connection header against a hardcoded allowlist protectHeaders proxy/httpheaders.go:28-36 containing only the 7 X-Forwarded family headers. Fabio also...

CVE-2026-88011

A flaw was found in Traefik, an open-source HTTP reverse proxy and load balancer. A remote attacker can exploit this vulnerability by sending a specially crafted dot-form header, such as X.Authenticated.User. Due to a discrepancy in how Go and certain backend systems like CGI, WSGI, PHP, and NGIN...

SUSE CVE-2026-73550

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy copies every decoded HTTP/2 Host header value before discarding it when :authority is already present. The discarded value bypasses saveHeader, so its bytes a...

NPM: 9Router has a Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header

NPM: 9Router has a Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header vulnerability discovered by ? in WordPress Npm 9router versions = 0.5.4...

GHSA-32GC-64M7-HJ7V 9Router has a Login Brute-Force Lockout Bypass via Spoofable X-9r-Real-Ip Header

Summary 9router enforces a progressive login lockout 5 failed attempts → temporary 30s+ lock keyed on the client IP. The client IP used for this limiter is taken from the X-9r-Real-Ip request header, which is intended to be set only by the bundled custom-server.js layer from the unspoofable TCP...

SUSE CVE-2026-77680

An algorithmic complexity flaw exists in libsoup's HTTP Range header processing that persists after the CVE-2025-32907 fix. CVE-2025-32907 addressed memory amplification when a client repeated the same range many times in a single Range header. Commit 9bb92f7a corrected merge correctness in...

EUVD-2026-84542

9Router is an AI router & token saver. Prior to 0.5.6, 9Router deployments that allow requests to reach Next.js without the sanitizing custom-server.js wrapper use the client-supplied X-9r-Real-Ip value as the bucket key in getClientIp, checkLock, and recordFail in src/lib/auth/loginLimiter.js fo...

CVE-2026-88004

A flaw was found in Traefik, an open-source HTTP reverse proxy and load balancer. Its entrypoint defenses, designed to sanitize header names, failed to inspect request trailers. This allowed an unauthenticated client to submit malicious header names within HTTP/1.1 chunked or HTTP/2 trailers...

CVE-2026-88887

A flaw was found in Renovate, a dependency update automation tool. When Renovate lists tags or digests for a container image, it follows pagination links provided by the remote registry in the HTTP Link header. However, it fails to verify that the pagination URL has the same origin as the origina...

CVE-2026-88882

A flaw was found in Renovate, a dependency update automation tool. When listing new package versions from a NuGet registry, Renovate follows pagination URLs provided in the HTTP Link header without verifying the target's origin. A malicious or compromised NuGet registry can exploit this by...

CVE-2026-88880

A flaw was found in Renovate. The application fails to validate Link header destinations when processing GitLab server pagination, which allows malicious servers to redirect requests containing credentials. An attacker controlling a compromised GitLab server can specify a crafted Link header to...

netty: io.netty/netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification

A flaw was found in Netty, a network application framework. A remote attacker could exploit a vulnerability in the SPDY header decoding process. By sending a specially crafted, small compressed header block, the attacker can cause it to expand significantly during decompression, leading to...

io.netty/netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header

A flaw was found in Netty, a network application framework. A remote attacker can bypass security controls in the CorsHandler component by sending a specially crafted request with a null origin header. This bypasses the intended access restrictions, allowing unauthorized requests to reach the...

io.netty/netty-codec-http2: HTTP/1 absolute-form Host mismatch is translated to HTTP/2 :authority, overriding the request-target authority

A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in Netty's HTTP/1 to HTTP/2 conversion process. When an HTTP/1 request includes both an absolute-form request-target and a conflicting Host header, Netty incorrectly prioritizes the Host header for the HTTP/2...

io.netty/netty-codec-http2: HTTP/1 authority-form CONNECT is translated to malformed HTTP/2 CONNECT with Host-controlled :authority

A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component incorrectly uses the Host header instead of the CONNECT authority-form request-target for the tunnel authority. A remote attacker can exploit this by supplying a different Host header, leadi...

libevent: Libevent: HTTP header handling bugs create risk of access control bypass.

A flaw was found in libevent. The evhttpdecodeuriinternal function in http.c decodes percent-encoded %00 bytes into literal NUL characters without rejecting them, allowing an attacker to craft a URI such as /admin/secret%00.jpg where extension-based access checks see .jpg but the server processes...

io.netty/netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header

A flaw was found in Netty, a network application framework. A remote attacker can bypass security controls in the CorsHandler component by sending a specially crafted request with a null origin header. This bypasses the intended access restrictions, allowing unauthorized requests to reach the...

netty: io.netty/netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification

A flaw was found in Netty, a network application framework. A remote attacker could exploit a vulnerability in the SPDY header decoding process. By sending a specially crafted, small compressed header block, the attacker can cause it to expand significantly during decompression, leading to...

netty: io.netty/netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification

A flaw was found in Netty, a network application framework. A remote attacker could exploit a vulnerability in the SPDY header decoding process. By sending a specially crafted, small compressed header block, the attacker can cause it to expand significantly during decompression, leading to...