GO-2026-4893 Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField in github.com/traefik/traefik

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField in github.com/traefik/traefik...

PT-2026-29940

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField in github.com/traefik/traefik...

GHSA-QR99-7898-VR7C Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Summary There is a potential vulnerability in Traefik's Basic and Digest authentication middlewares when headerField is configured with a non-canonical HTTP header name. An authenticated attacker with valid credentials can inject the canonical version of the configured header to impersonate any...

Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Summary There is a potential vulnerability in Traefik's Basic and Digest authentication middlewares when headerField is configured with a non-canonical HTTP header name. An authenticated attacker with valid credentials can inject the canonical version of the configured header to impersonate any...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation through the basicAuth and digestAuth middleware headerField handling in pkg/middlewares/auth/basicauth.go and pkg/middlewares/auth/digestauth.go. An attacker can impersonate an arbitrary user identity to backend...

User Impersonation

Overview github.com/traefik/traefik/v2/pkg/middlewares/auth is a Cloud Native Application Proxy. Affected versions of this package are vulnerable to User Impersonation through the basicAuth and digestAuth middleware headerField handling in pkg/middlewares/auth/basicauth.go and...

CVE-2026-33433 Traefik Vulnerable to BasicAuth/DigestAuth Identity Spoofing via Non-Canonical headerField

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.42, 3.6.11, and 3.7.0-ea.3, when headerField is configured with a non-canonical HTTP header name e.g., x-auth-user instead of X-Auth-User, an authenticated attacker can inject their own canonical version of that header to...

CVE-2026-33745

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary hosts when following cross-origin HTTP redirects 301/302/307/308. A malicious or...

CVE-2026-33745 cpp-httplib Client Leaks Authentication Credentials to Untrusted Hosts on Cross-Origin HTTP Redirect

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary hosts when following cross-origin HTTP redirects 301/302/307/308. A malicious or...

CVE-2026-33745 cpp-httplib Client Leaks Authentication Credentials to Untrusted Hosts on Cross-Origin HTTP Redirect

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary hosts when following cross-origin HTTP redirects 301/302/307/308. A malicious or...

CVE-2026-33745 cpp-httplib Client Leaks Authentication Credentials to Untrusted Hosts on Cross-Origin HTTP Redirect

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary hosts when following cross-origin HTTP redirects 301/302/307/308. A malicious or...

CVE-2026-33745

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary hosts when following cross-origin HTTP redirects 301/302/307/308. A malicious or...

PT-2026-28524

Name of the Vulnerable Software and Affected Versions cpp-httplib versions prior to 0.39.0 Description The cpp-httplib HTTP client improperly handles cross-origin HTTP redirects 301, 302, 307, 308. Specifically, it forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary...

CVE-2026-27651

CVE-2026-27651 affects the ngx_mail_auth_http_module in NGINX Plus and NGINX Open Source. When CRAM-MD5 or APOP authentication is enabled and the authentication server indicates a retry by returning the Auth-Wait header, undisclosed requests can cause worker processes to terminate. This is the st...

curl: Unescaped username in SASL DIGEST-MD5 response allows injection

Summary: The username is inserted into the digest-md5 response without escaping the quotes or backslashes. The HTTP digest path on line 863 in lib/vauth/digest.c uses authdigeststringquoted but the SASL does not line 478. Commit ac419bf sorted the HTTP in 2013. It looks like the SASL was moved in...

EUVD-2026-11573

A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count nc attribute. This vulnerability allows a remote attacker to capture a single valid...

UBUNTU-CVE-2026-3099

A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count nc attribute. This vulnerability allows a remote attacker to capture a single valid...

CVE-2026-3099 Libsoup: libsoup: authentication bypass via digest authentication replay attack

A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count nc attribute. This vulnerability allows a remote attacker to capture a single valid...

CVE-2026-3099

Affects Libsoup’s server-side Digest authentication in SoupAuthDomainDigest. The vulnerability arises from failure to properly track issued nonces and increment nonce-count (nc), enabling a remote attacker to capture a single valid authentication header and replay it to bypass authentication and ...

CVE-2026-3099 Libsoup: libsoup: authentication bypass via digest authentication replay attack

A flaw was found in Libsoup. The server-side digest authentication implementation in the SoupAuthDomainDigest class does not properly track issued nonces or enforce the required incrementing nonce-count nc attribute. This vulnerability allows a remote attacker to capture a single valid...