GHSA-XH68-HFP5-5X5M daphne: WebSocket handshake header smuggling through autobahn splitlines() mishandling of non-standard line separators

daphne before 4.2.2 reconstructs a raw HTTP request from Twisted's parsed headers and feeds it to autobahn for WebSocket handshake processing. Twisted does not treat \x0b, \x0c, \x1c, \x1d, \x1e, or \x85 as header line separators, but autobahn decodes header values to str and calls splitlines. An...

Authentication Scheme Parsing Bypass

org.keycloak, keycloak-parent is vulnerable to Authentication Scheme Parsing Bypass. The vulnerability is due to an overly permissive Authorization header parser that accepts non-standard separators such as tabs and improper case variations for the “Bearer” scheme, which allows an attacker to...

Keycloak has Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters such as tabs as separators and tolerates case variations that deviate from RFC 6750 specifications...

CVE-2026-0707

A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters such as tabs as separators and tolerates case variations that deviate from RFC 6750 specifications...

CVE-2026-0707 Keycloak: keycloak authorization header parsing leading to potential security control bypass

A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters such as tabs as separators and tolerates case variations that deviate from RFC 6750 specifications...

ips-evasion.txt

Summarized from https://strikecenter.bpointsys.com/ Many commercial IPS products fail to decode HTTP requests which use 0x0c, 0x0b, and 0x0d instead of the normal 0x20/0x09 separators. A request in the following format will evade most IPS protocol decoders: $ echo -ne...

CVE-2004-0052: Undefined Security Weakness

Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use non-standard separator characters, or use standard separators incorrectly, within MIME headers, fields, parameters, or values, which may be interpreted...