381 matches found
CVE-2026-54665
Apache NiFi 0.0.1 through 2.9.0 support building qualified URLs from one of several HTTP request headers that provide an alternative to the standard Host header without validating the values provided. Apache NiFi 1.6.0 introduced a configurable application property to restrict values provided in...
MGASA-2026-0226 Updated ruby-rack packages fix security vulnerabilities
CVE-2026-26961 Greedy multipart boundary parsing can cause parser differentials and WAF bypass. Forwarded header semicolon injection enables Host and Scheme spoofing. CVE-2026-34230 Quadratic complexity in Rack::Utils.selectbestencoding via wildcard Accept-Encoding header. CVE-2026-34763 Root...
CVE-2026-54106
The U.S. Government Accountability Office GAO Electronic Protest Docketing System EPDS and Civilian Board of Contract Appeals CBCA Electronic Docketing System EDS do not validate X-Forwarded-For HTTP headers, allowing a remote attacker with compromised administrator credentials to bypass network...
GHSA-WHXW-24JC-CWMV Kirby: External Initialization of the Panel on reverse proxy setups with the `Forwarded` header
TL;DR This vulnerability affects Kirby sites that have no configured user accounts and are running on publicly accessible servers behind a reverse proxy that sets the Forwarded: for=..., X-Client-IP, or X-Real-IP request header. It was possible to install the Panel = create the first admin user i...
Kirby: External Initialization of the Panel on reverse proxy setups with the `Forwarded` header
TL;DR This vulnerability affects Kirby sites that have no configured user accounts and are running on publicly accessible servers behind a reverse proxy that sets the Forwarded: for=..., X-Client-IP, or X-Real-IP request header. It was possible to install the Panel = create the first admin user i...
GHSA-4JGR-PG2M-M988 Heimdall: Forwarded Header Injection via Unsanitized Host Header in Proxy Mode
Summary When Heimdall operates in proxy mode, it constructs the Forwarded HTTP header after executing the matched rule pipeline by inserting the incoming request's Host header value directly into the header string without sanitizing commas or semicolons. This allows an attacker to inject addition...
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Overview Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component 'Injection' via the Host header when operating in proxy mode, due to unsanitized input being directly inserted into the Forwarded header. An attacker c...
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Overview Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component 'Injection' via the Host header when operating in proxy mode, due to unsanitized input being directly inserted into the Forwarded header. An attacker c...
Heimdall: Forwarded Header Injection via Unsanitized Host Header in Proxy Mode
Summary When Heimdall operates in proxy mode, it constructs the Forwarded HTTP header after executing the matched rule pipeline by inserting the incoming request's Host header value directly into the header string without sanitizing commas or semicolons. This allows an attacker to inject addition...
User Impersonation
Overview Affected versions of this package are vulnerable to User Impersonation via unvalidated parsing of the Forwarded and X-Forwarded-For headers. An attacker can inject arbitrary or malformed values into Request.ClientIPAddresses by supplying crafted forwarding headers. This can lead to...
Heimdall: IP Spoofing via Unvalidated Forwarding Headers
Summary When the trustedproxies option is configured, heimdall extracts client IP addresses from the Forwarded for= parameter and X-Forwarded-For headers and exposes them as Request.ClientIPAddresses to the rule pipeline. However, extracted values are not validated to be syntactically valid IP...
User Impersonation
Overview Affected versions of this package are vulnerable to User Impersonation via unvalidated parsing of the Forwarded and X-Forwarded-For headers. An attacker can inject arbitrary or malformed values into Request.ClientIPAddresses by supplying crafted forwarding headers. This can lead to...
PT-2026-61803
Name of the Vulnerable Software and Affected Versions Heimdall affected versions not specified Description When operating in proxy mode, the software constructs the Forwarded HTTP header by inserting the Host header value from incoming requests without sanitizing commas or semicolons. This allows...
PT-2026-53121
Summary When the trusted proxies option is configured, heimdall extracts client IP addresses from the Forwarded for= parameter and X-Forwarded-For headers and exposes them as Request.ClientIPAddresses to the rule pipeline. However, extracted values are not validated to be syntactically valid IP...
PT-2026-50724
Name of the Vulnerable Software and Affected Versions Kirby versions prior to 4.9.4 Kirby versions prior to 5.4.4 Description An external initialization issue exists in the Kirby Panel and REST API. This occurs when a site has no configured user accounts and is hosted on a publicly accessible...
PT-2026-61804
Name of the Vulnerable Software and Affected Versions heimdall affected versions not specified Description When the trusted proxies option is enabled, the software extracts client IP addresses from the Forwarded specifically the for= parameter and X-Forwarded-For headers, exposing them via...
Improper Handling Of HTTP Headers
hono is vulnerable to Improper Handling of HTTP Headers. The vulnerability is due to using Headers.set instead of Headers.append when processing repeated request headers, which allows multiple header values to be overwritten and truncated, potentially enabling attackers to bypass security control...
GHSA-WGPF-JWQJ-8H8P hono: Lambda@Edge adapter keeps only the last value of a repeated request header, dropping the rest
Summary On AWS Lambda@Edge, CloudFront delivers a request header that appears more than once as several separate entries. The adapter writes each value with Headers.set instead of Headers.append, so every value overwrites the previous one and only the last reaches the application. Repeated reques...
CVE-2026-47825
A flaw was found in Spring Cloud Gateway Server. In certain configurations, the server improperly forwards X-Forwarded-For and Forwarded headers received from untrusted proxies. This vulnerability affects both WebMVC and WebFlux Gateway Servers, potentially allowing an attacker to manipulate the...
PT-2026-49736
Name of the Vulnerable Software and Affected Versions Hono versions prior to 4.12.25 Description On AWS Lambda@Edge, CloudFront delivers request headers that appear multiple times as separate entries. The adapter uses the Headers.set function instead of Headers.append, causing each subsequent val...