CVE-2026-49835

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.1.0, the global wrapMetrics middleware records raw HTTP request path r.URL.Path and raw HTTP request method r.Method as Prometheus labels for latency and request count metric vectors before routing, allowing an...

PYSEC-2026-1752 opentelemetry-instrumentation Denial of Service vulnerability due to unbound cardinality metrics

Summary Autoinstrumentation out of the box adds the label httpmethod that has unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent. Details HTTP method for requests can be easily set by an attacker to be random and long. PoC Send many...

opentelemetry-instrumentation Denial of Service vulnerability due to unbound cardinality metrics

SummaryAutoinstrumentation out of the box adds the label httpmethod that has unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent. DetailsHTTP method for requests can be easily set by an attacker to be random and long. PoCSend many reques...

CVE-2026-14198

@fastify/middie versions 9.1.0 through 9.3.2 decode the encoded slash %2F inside path parameter values before matching middleware paths, while Fastify's underlying router preserves the encoding during route lookup. The two layers disagree on the canonical request path, so the middleware fails to...

tomcat: Apache Tomcat: Improper Authorization Allows Security Constraint Bypass

A flaw was found in Apache Tomcat where access control rules for the default servlet are improperly handled. An attacker can exploit this issue to bypass specific HTTP method restrictions, potentially gaining unauthorized access to protected application resources...

GHSA-VM85-HXW5-5432 guzzlehttp/psr7: CRLF Injection in HTTP Start-Line Serialization

Impact guzzlehttp/psr7 did not reject CR/LF characters in certain first-party HTTP start-line fields: the request method, protocol version, and response reason phrase. If an application placed attacker-controlled data into one of those fields and later serialized the PSR-7 message as raw HTTP/1.x...

CVE-2026-48817

Starlette is a lightweight ASGI framework/toolkit. In versions 1.0.1 and below, when dispatching a request, HTTPEndpoint selects the handler by lowercasing the HTTP method and looking it up as an attribute with getattr, without restricting the lookup to a known set of HTTP verbs. When an...

CVE-2026-43515

In Apache Tomcat, when multiple security constraints defined an HTTP method constraint for the same extension pattern, only the first method constraint was applied. A remote attacker could exploit this to bypass intended security restrictions for information or actions within the application...

CVE-2026-42551

Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Request::getMethod unconditionally honors the X-HTTP-Method-Override header and the $REQUEST'method' parameter on any HTTP verb including safe verbs such as GET, with no opt-in and no whitelist of permitted target methods. A GET...

CVE-2026-42551 Flight: HTTP method override enabled by default enables CSRF escalation and middleware bypass in flightphp/core

Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Request::getMethod unconditionally honors the X-HTTP-Method-Override header and the $REQUEST'method' parameter on any HTTP verb including safe verbs such as GET, with no opt-in and no whitelist of permitted target methods. A GET...

CVE-2026-42551: Interpretation Conflict

Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Request::getMethod unconditionally honors the X-HTTP-Method-Override header and the $REQUEST'method' parameter on any HTTP verb including safe verbs such as GET, with no opt-in and no whitelist of permitted target methods. A GET...

GHSA-5M62-PW8W-7W9F Apache Tomcat - Security constraints not correctly applied

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: When multiple security constraints defined an HTTP method constraint for the same extension pattern, only the...

DEBIAN-CVE-2026-43515

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from...

CVE-2026-43515

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from...

CVE-2026-43515 Apache Tomcat: Security constraints not correctly applied

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from...

CVE-2026-43515

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from...

CVE-2026-43515: Improper Authorization

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from...

CVE-2026-43515: Improper Authorization

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from...

GHSA-VXRR-W42W-W76G Flight: HTTP method override enabled by default, facilitating CSRF escalation and middleware bypass

Summary Request::getMethod unconditionally honors the X-HTTP-Method-Override header and the $REQUEST'method' parameter on any HTTP verb including safe verbs such as GET, with no opt-in and no whitelist of permitted target methods. A GET request can silently become a DELETE or PUT, enabling CSRF...

RHCOS : OpenShift Container Platform 4.8.25 (RHSA-2021:5208)

The remote Red Hat Enterprise Linux CoreOS host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:5208 advisory. - haproxy: does not ensure that the scheme and path portions of a URI have the expected characters CVE-2021-39240 - haproxy: an HTTP...