CVE-2026-47220

A flaw was found in Envoy. A remote attacker can exploit this vulnerability by sending a request with a missing host header when the %REQUESTEDSERVERNAMEX:Y% is used in the log format and host-related options, such as HOSTFIRST or SNIFIRST, are specified. This can lead to a crash of the Envoy...

CVE-2026-47220

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTEDSERVERNAMEX:Y% is used in log format and host related options is specified, like HOSTFIRST, SNIFIRST, it's possible to crash Envoy when the specified host...

CVE-2026-47220

The CVE describes a crash in Envoy when using %REQUESTED_SERVER_NAME(X:Y)% in log format with host-related options (e.g., HOST_FIRST, SNI_FIRST) and the specified host header is missing in the request headers. Affected versions are 1.37.0 through 1.37.5 and 1.38.3. The vulnerability arises from t...

CVE-2026-47220 Envoy: Segmentation fault when using %REQUESTED_SERVER_NAME% in log format

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTEDSERVERNAMEX:Y% is used in log format and host related options is specified, like HOSTFIRST, SNIFIRST, it's possible to crash Envoy when the specified host...

CVE-2026-47220 Envoy: Segmentation fault when using %REQUESTED_SERVER_NAME% in log format

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTEDSERVERNAMEX:Y% is used in log format and host related options is specified, like HOSTFIRST, SNIFIRST, it's possible to crash Envoy when the specified host...

CVE-2026-47220 Envoy: Segmentation fault when using %REQUESTED_SERVER_NAME% in log format

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTEDSERVERNAMEX:Y% is used in log format and host related options is specified, like HOSTFIRST, SNIFIRST, it's possible to crash Envoy when the specified host...

SUSE SLES16 Security Update : python-aiohttp (SUSE-SU-2026:22173-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22173-1 advisory. This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient header/trailer handling can cause a denia...

PT-2026-52894

Name of the Vulnerable Software and Affected Versions Envoy versions 1.37.0 through 1.37.4 Envoy versions 1.38.0 through 1.38.2 Description Envoy can crash when the %REQUESTED SERVER NAMEX:Y% variable is used in the log format and host-related options such as HOST FIRST or SNI FIRST are specified...

GO-2026-5671 Mattermost doesn't validate the Host header when constructing response URLs for custom slash command in github.com/mattermost/mattermost-server

Mattermost doesn't validate the Host header when constructing response URLs for custom slash command in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is...

GO-2026-5125 Heimdall: Forwarded Header Injection via Unsanitized Host Header in Proxy Mode in github.com/dadrus/heimdall

Heimdall: Forwarded Header Injection via Unsanitized Host Header in Proxy Mode in github.com/dadrus/heimdall...

CVE-2026-46611 Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server glances -s, implemented in glances/server.py does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. An attacker can exploit DNS rebinding to exfiltrate the...

CVE-2026-46611 Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the Glances XML-RPC server glances -s, implemented in glances/server.py does not validate the HTTP Host header, leaving it vulnerable to DNS rebinding attacks. An attacker can exploit DNS rebinding to exfiltrate the...

CVE-2026-46611

Glances XML-RPC server (glances/server.py) before 4.5.5 does not validate the HTTP Host header, enabling DNS rebinding attacks to exfiltrate the victim’s monitoring data. The vulnerability affects the XML-RPC backend used by glances -s (XML-RPC path /RPC2) and allows an attacker to cause the brow...

CVE-2026-55602

A flaw was found in http-proxy-middleware before 2.0.10, 3.0.6, and 4.1.0. Router proxy-table host+path matching uses unanchored substring comparison on the Host header, so a crafted Host value that superstring-matches a configured key can route requests to an unintended backend...

CVE-2026-13150

Server-Side Request Forgery SSRF CWE-918 in the PDF generation endpoint GET /api/reports/id/pdf backend/main.py in ccyl13 Pentestify 1.0.0 and lower allows remote attackers to make the server issue requests to arbitrary internal or external URLs, including cloud metadata services, and return the...

CVE-2026-13150 SSRF in Pentestify PDF generation endpoint via Host header

Server-Side Request Forgery SSRF CWE-918 in the PDF generation endpoint GET /api/reports/id/pdf backend/main.py in ccyl13 Pentestify 1.0.0 and lower allows remote attackers to make the server issue requests to arbitrary internal or external URLs, including cloud metadata services, and return the...

EUVD-2026-38735

Server-Side Request Forgery SSRF CWE-918 in the PDF generation endpoint GET /api/reports/id/pdf backend/main.py in ccyl13 Pentestify 1.0.0 and lower allows remote attackers to make the server issue requests to arbitrary internal or external URLs, including cloud metadata services, and return the...

CVE-2026-13150 SSRF in Pentestify PDF generation endpoint via Host header

Server-Side Request Forgery SSRF CWE-918 in the PDF generation endpoint GET /api/reports/id/pdf backend/main.py in ccyl13 Pentestify 1.0.0 and lower allows remote attackers to make the server issue requests to arbitrary internal or external URLs, including cloud metadata services, and return the...

CVE-2026-13150

Server-Side Request Forgery SSRF CWE-918 in the PDF generation endpoint GET /api/reports/id/pdf backend/main.py in ccyl13 Pentestify 1.0.0 and lower allows remote attackers to make the server issue requests to arbitrary internal or external URLs, including cloud metadata services, and return the...

CVE-2026-54588

A flaw was found in Poweradmin, a web-based DNS administration tool. An unauthenticated attacker can exploit this vulnerability by manipulating the HTTPHOST request header. This manipulation allows the attacker to poison the redirecturi used in the OpenID Connect OIDC, Security Assertion Markup...