GHSA-X424-64QH-5J54 react/http: A malformed HTTP chunked body can lead to a denial-of-service and peg the CPU

Summary A malformed HTTP message using Transfer-Encoding: chunked can drive React\Http\Io\ChunkedDecoder into an infinite loop, pegging a CPU core and freezing the event loop. Because ReactPHP is single-threaded, one such message stalls the entire process for every client until it is killed. Both...

FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses

A vulnerability in FreeRDP allows a malicious RD Gateway to bypass client-side size limits by sending oversized chunked HTTP responses. This exhausts the client's memory, resulting in a Denial of Service DoS...

GHSA-5GPM-RGJ3-9Q76 Skipper has OPA body-authz bypass: truncated_body mitigation fails open on chunked/HTTP-2 (incomplete fix GHSA-8qqm-fp2q-v734)

Affected component: filters/openpolicyagent/openpolicyagent.go → ExtractHttpBodyOptionally; combined with github.com/open-policy-agent/opa-envoy-plugin envoyauth/request.go → getParsedBody / checkIfHTTPBodyTruncated. Filter: opaAuthorizeRequestWithBody. - Affected versions: = 0.27.33 current HEAD...

CVE-2026-85078

Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controll...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the HTTP/1.1 request parsing process. An attacker can cause the server to interpret leftover bytes in the connection buffer as a new, unintended HTTP request by sending specially crafted chunked requests with...

GHSA-WMJ6-G64G-J7Q5 sanic chunked trailer request smuggling allows hidden second request execution

Description Sanic's HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating 0\r\n chunk. Because of that, attacker-controlled bytes left in the connection buffer after the first chunked request can be interpreted as the start of a new HTTP request on the same...

sanic chunked trailer request smuggling allows hidden second request execution

Description Sanic's HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating 0\r\n chunk. Because of that, attacker-controlled bytes left in the connection buffer after the first chunked request can be interpreted as the start of a new HTTP request on the same...

EUVD-2026-81577

Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controll...

CVE-2026-85078 sanic chunked trailer request smuggling allows hidden second request execution

Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controll...

CVE-2026-85078 sanic chunked trailer request smuggling allows hidden second request execution

Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controll...

CVE-2026-85078 sanic chunked trailer request smuggling allows hidden second request execution

Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controll...

CVE-2026-85078

Sanic is an open-source Python web server/framework. In version 25.12.0 , its core HTTP/1.1 chunked-body handling fails to fully consume the trailer portion after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-control...

CVE-2026-85078: Inconsistent Interpretation of HTTP Requests

Sanic is an opensource python web server/framework. In version 25.12.0, Sanic's core HTTP/1.1 chunked-body handling does not fully consume the trailer-part after the terminating zero chunk before reusing the keep-alive connection buffer. A remote unauthenticated client can place attacker-controll...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization through ExtractHttpBodyOptionally in filters/openpolicyagent/openpolicyagent.go and AdaptToExtAuthRequest in filters/openpolicyagent/internal/envoy/skipperadapter.go. An attacker can get an oversized request body...

CVE-2026-86043 Skipper: OPA body-authz bypass: truncated_body mitigation fails open on chunked/HTTP-2 (incomplete fix CVE-2026-50197)

Skipper is an HTTP router and reverse proxy for service composition. Prior to version 0.27.37, the opaAuthorizeRequestWithBody filter can authorize an oversized request after Skipper truncates the body presented to Open Policy Agent because the input.truncatedbody signal is derived from...

CVE-2026-86043 Skipper: OPA body-authz bypass: truncated_body mitigation fails open on chunked/HTTP-2 (incomplete fix CVE-2026-50197)

Skipper is an HTTP router and reverse proxy for service composition. Prior to version 0.27.37, the opaAuthorizeRequestWithBody filter can authorize an oversized request after Skipper truncates the body presented to Open Policy Agent because the input.truncatedbody signal is derived from...

CVE-2026-84997 react/http: A malformed HTTP chunked body can lead to a denial-of-service and peg the CPU

react/http is an event-driven, streaming HTTP client and server implementation for ReactPHP. From 0.6.0 until 1.11.1, React\Http\Io\ChunkedDecoder could enter an infinite loop while processing a malformed Transfer-Encoding: chunked body because handleData required its buffer to shrink on every...

CVE-2026-84997

react/http (ReactPHP) is vulnerable to a denial-of-service via a malformed HTTP chunked body. The ChunkedDecoder enters an infinite loop when it receives either an incomplete terminal-chunk trailer without CRLF or exactly two non-CRLF bytes after a completed non-terminal chunk, because handleData...

libevent: Libevent: HTTP header smuggling allows authorization bypass or cache poisoning

A flaw was found in Libevent, an event notification library. An unauthenticated remote attacker can exploit a vulnerability where chunked HTTP Hypertext Transfer Protocol trailers are incorrectly merged into request headers. This allows the attacker to place security-sensitive fields in trailers,...

libevent: Libevent: HTTP header smuggling allows authorization bypass or cache poisoning

A flaw was found in Libevent, an event notification library. An unauthenticated remote attacker can exploit a vulnerability where chunked HTTP Hypertext Transfer Protocol trailers are incorrectly merged into request headers. This allows the attacker to place security-sensitive fields in trailers,...