NPM: OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin

NPM: OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin vulnerability discovered by ? in WordPress Npm openclaw versions 2026.5.12...

OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin

Summary OpenClaw supports remote MCP Streamable HTTP servers with operator-configured custom headers. In affected releases, those headers could be forwarded when the MCP endpoint responded with a cross-origin redirect. This issue is limited to configured MCP Streamable HTTP servers that use custo...

GHSA-RJXQ-QQHF-8HWH OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin

Summary OpenClaw supports remote MCP Streamable HTTP servers with operator-configured custom headers. In affected releases, those headers could be forwarded when the MCP endpoint responded with a cross-origin redirect. This issue is limited to configured MCP Streamable HTTP servers that use custo...

EUVD-2026-37142

OpenClaw: MCP Streamable HTTP redirects could forward configured custom headers to another origin...

Duplicate Advisory: MCP Streamable HTTP redirects could forward configured custom headers to another origin

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rjxq-qqhf-8hwh. This link is maintained to preserve external references. Original Description OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwar...

GHSA-X7CF-6GP3-Q5F8 Duplicate Advisory: MCP Streamable HTTP redirects could forward configured custom headers to another origin

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rjxq-qqhf-8hwh. This link is maintained to preserve external references. Original Description OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwar...

CVE-2026-53840 OpenClaw < 2026.5.12 - Custom Header Leakage via MCP Streamable HTTP Cross-Origin Redirects

OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwards operator-configured custom headers during cross-origin redirects. Attackers controlling or compromising an MCP endpoint can redirect requests to exfiltrate sensitive headers lik...

CVE-2026-53840 OpenClaw < 2026.5.12 - Custom Header Leakage via MCP Streamable HTTP Cross-Origin Redirects

OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwards operator-configured custom headers during cross-origin redirects. Attackers controlling or compromising an MCP endpoint can redirect requests to exfiltrate sensitive headers lik...

CVE-2026-53840 OpenClaw < 2026.5.12 - Custom Header Leakage via MCP Streamable HTTP Cross-Origin Redirects

OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwards operator-configured custom headers during cross-origin redirects. Attackers controlling or compromising an MCP endpoint can redirect requests to exfiltrate sensitive headers lik...

[SECURITY] Fedora 43 Update: nginx-mod-fancyindex-0.6.0-5.fc43

The Fancy Index module makes possible the generation of file listings, like the built-in autoindex module does, but adding a touch of style. This is possible because the module allows a certain degree of customization of the generated content: Custom headers. Either local or stored remotely. Cust...

[SECURITY] Fedora 44 Update: nginx-mod-fancyindex-0.6.0-5.fc44

The Fancy Index module makes possible the generation of file listings, like the built-in autoindex module does, but adding a touch of style. This is possible because the module allows a certain degree of customization of the generated content: Custom headers. Either local or stored remotely. Cust...

curl: CRLF Injection via Custom HTTP Headers

Summary: libcurl writes user-supplied custom headers directly into the HTTP request buffer without stripping \r\n characters. The raw input pointer origp in Curladdcustomheaders lib/http.c is serialized verbatim into the outgoing request using curlxdynaddfreq, "%s\r\n", origp instead of using the...

[SECURITY] Fedora 42 Update: nginx-mod-fancyindex-0.6.0-4.fc42

The Fancy Index module makes possible the generation of file listings, like the built-in autoindex module does, but adding a touch of style. This is possible because the module allows a certain degree of customization of the generated content: Custom headers. Either local or stored remotely. Cust...

[SECURITY] Fedora 43 Update: nginx-mod-fancyindex-0.6.0-4.fc43

The Fancy Index module makes possible the generation of file listings, like the built-in autoindex module does, but adding a touch of style. This is possible because the module allows a certain degree of customization of the generated content: Custom headers. Either local or stored remotely. Cust...

[SECURITY] Fedora 44 Update: nginx-mod-fancyindex-0.6.0-4.fc44

The Fancy Index module makes possible the generation of file listings, like the built-in autoindex module does, but adding a touch of style. This is possible because the module allows a certain degree of customization of the generated content: Custom headers. Either local or stored remotely. Cust...

CVE-2026-44503

The RedirectHandler middleware in microsoft/kiota-java com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0 and other Kiota libraries fails to strip sensitive HTTP headers when following 3xx redirects to a different host or scheme. Only the Authorization header is removed; Cookie,...

CVE-2026-44503

The RedirectHandler middleware in microsoft/kiota-java com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0 and other Kiota libraries fails to strip sensitive HTTP headers when following 3xx redirects to a different host or scheme. Only the Authorization header is removed; Cookie,...

CVE-2026-44503

CVE-2026-44503 affects the RedirectHandler in microsoft/kiota-java (com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0, and similar Kiota libraries). The root cause is that when following 3xx redirects to a different host or scheme, only the Authorization header is removed; Cookie, Proxy-Auth...

CVE-2026-2717

The CVE concerns the WordPress HTTP Headers plugin (versions up to and including 1.19.2) vulnerable to CRLF Injection. The issue arises from insufficient sanitization of custom header name/value fields before they are written to the Apache .htaccess file via insert_with_markers(), enabling authen...

CVE-2026-2717 HTTP Headers <= 1.19.2 - Authenticated (Administrator+) CRLF Injection via Custom Header Values

The HTTP Headers plugin for WordPress is vulnerable to CRLF Injection in all versions up to, and including, 1.19.2. This is due to insufficient sanitization of custom header name and value fields before writing them to the Apache .htaccess file via insertwithmarkers. This makes it possible for...