Traefik: Incomplete fix for CVE-2026-33433 + CVE-2026-39858 cross-cohort: headerField underscore-variant identity spoofing in BasicAuth / DigestAuth / ForwardAuth

Summary There is a high severity vulnerability in Traefik's BasicAuth, DigestAuth, and ForwardAuth middlewares. The fix for CVE-2026-33433 stripped canonical-cased spoofed identity headers e.g. X-Auth-User before writing Traefik's own value, but did not account for underscore-variant header names...

EUVD-2026-42885

Capgo before 12.128.2 contains a cross-tenant preview namespace collision vulnerability caused by non-bijective decoding of double underscores to dots in preview hostname parsing. Attackers can register app IDs with underscores that collide with other tenants' dotted app IDs, causing preview...

CVE-2026-56329 Capgo - Cross-Tenant Preview Namespace Collision via Non-Bijective Underscore Decoding

Capgo before 12.128.2 contains a cross-tenant preview namespace collision vulnerability caused by non-bijective decoding of double underscores to dots in preview hostname parsing. Attackers can register app IDs with underscores that collide with other tenants' dotted app IDs, causing preview...

CVE-2026-56325

Capgo before 12.128.2 uses ILIKE pattern matching instead of exact matching for appid lookup in the preview subdomain resolver, allowing underscore characters in appid to act as SQL wildcards. Attackers can create apps with appids differing by one character at underscore positions to cause...

GHSA-8788-J68R-3CGH Open WebUI: Any authenticated user can read other users' private notes via Socket.IO

Summary The ydoc:document:join Socket.IO handler checks note ownership only when the documentid starts with note: colon. However, the YdocManager storage layer normalizes all document IDs by replacing colons with underscores documentid.replace":", "". An attacker can join a document room using no...

Authentication Bypass

github.com/traefik/traefik is vulnerable to an authentication bypass. The vulnerability is due to improper sanitization of forwarded header alias variants using underscores instead of dashes, which allows an attacker to inject spoofed trusted headers and bypass authentication on protected routes...

CVE-2026-39858

A flaw was found in Traefik. A remote attacker can exploit an authentication bypass vulnerability by injecting spoofed trust context through unsanitized alias headers. This is due to Traefik's forwarded-header sanitization logic not properly handling alias header names that use underscores instea...

USN-8154-2 python-django vulnerabilities

USN-8154-1 fixed vulnerabilities in Django. This update provides the corresponding updates for CVE-2026-33033 and CVE-2026-4292 in Ubuntu 14.04 LTS and Ubuntu 16.04 LTS, and CVE-2026-4277 in Ubuntu 16.04 LTS. Original advisory details: Seokchan Yoon discovered that Django incorrectly handled...

Command Injection

Overview Affected versions of this package are vulnerable to Command Injection via the Executrix utility when configuration-derived values, such as PLACENAME, are concatenated into shell commands without sufficient sanitization. An attacker can achieve arbitrary command execution by supplying...

CVE-2026-25534

Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE CVE-2025-61916 through the use of carefully...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the URL validation logic due to improper handling of underscores in hostnames. An attacker can access internal resources or sensitive endpoints by submitting specially crafted URLs containing...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the URL validation logic due to improper handling of underscores in hostnames. An attacker can access internal resources or sensitive endpoints by submitting specially crafted URLs containing...

CVE-2026-25534 Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE CVE-2025-61916 through the use of carefully...

CVE-2026-25534 Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE CVE-2025-61916 through the use of carefully...

CVE-2026-25534 Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE CVE-2025-61916 through the use of carefully...

GHSA-8R8J-GFHG-FW38 Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE CVE-2025-61916 through the use of carefully...

Spinnaker clouddriver and orca URL validation bypass via underscores in hostnames

Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE CVE-2025-61916 through the use of carefully...

PT-2026-25777

Impact Spinnaker updated URL Validation logic on user input to provide sanitation on user inputted URLs for clouddriver. However, they missed that Java URL objects do not correctly handle underscores on parsing. This led to a bypass of the previous CVE CVE-2025-61916 through the use of carefully...

MiracleLinux 7 : cups-filters-1.0.35-21.el7 (AXSA:2015-746:01)

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2015-746:01 advisory. Contains backends, filters, and other software that was once part of the core CUPS distribution but is no longer maintained by Apple Inc. In addition...

HTTP Header Injection

Overview Affected versions of this package are vulnerable to HTTP Header Injection via the processing of HTTP headers containing underscores, which are normalized to dashes by certain upstream applications. Authenticated users can escalate privileges by injecting specially crafted XForwarded-...