GHSA-JQC5-2P7Q-FQFC Hysteria: http large header with sniff cause server DoS

Summary Sending an excessively large header by an attacker could lead to a server-side DoS attack. Details The current sniff implementation does not explicitly specify the upper limit for HTTP headers. Attackers can continuously send excessively large headers without including \r\n\r\n, leading t...

PT-2026-56100

Summary Sending an excessively large header by an attacker could lead to a server-side DoS attack. Details The current sniff implementation does not explicitly specify the upper limit for HTTP headers. Attackers can continuously send excessively large headers without including r r , leading to...

Astra Linux – Vulnerability in Python 3.11

User-controlled header names and values containing newlines can allow for the injection of HTTP headers...

Insertion of Sensitive Information into Log File

Overview foreman-mcp-server is a MCP server for Foreman host management and infrastructure automation Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File via the sanitizeheaders method in logging.py, which used a denylist approach to redact sensiti...

CVE-2026-9073

A flaw was found in foreman-mcp-server. This component utilizes two distinct logging mechanisms that can expose sensitive session and authentication data. One mechanism logs session identifiers, which are treated as authentication credentials, at an informational level. The other, when debug...

SUSE-SU-2026:22196-1 Security update for tomcat11

This update for tomcat11 fixes the following issues Update to Tomcat 11.0.22: - CVE-2026-41284: Unbounded read in WebDAV LOCK and PROPFIND handling bsc1265162. - CVE-2026-41293: HTTP/2 request headers not validated bsc1265163. - CVE-2026-42498: WebSocket authentication header exposure bsc1265165....

nginx: NGINX: Arbitrary code execution or Denial of Service via heap-based buffer overflow with crafted HTTP/2 headers

A flaw was found in NGINX. When NGINX is configured to proxy HTTP/2 traffic using the ngxhttpproxyv2module or ngxhttpgrpcmodule with specific settings, a remote, unauthenticated attacker can send specially crafted large headers. This can trigger a heap-based buffer overflow, leading to a restart ...

CVE-2026-56020 Webmin HTTP header authentication bypass

The Webmin HTTP server miniserv.pl allows unauthenticated attackers to impersonate any user with a configured SSL client certificate by sending a forged HTTP header. A remote attacker can spoof certificate DNs and authenticate as any user. Fixed in 2.202...

Cross-site Scripting

Apache ActiveMQ is vulnerable to Cross-site Scripting XSS. The vulnerability is due to MessageServlet copying JMS message properties directly into HTTP response headers without validation, allowing attackers to inject or overwrite security-related HTTP headers by crafting JMS messages with...

CVE-2026-10836 Improper neutralization of HTTP headers in Password Manager

Improper handling of HTTP headers that allows a remote attacker to manipulate the value of the Host header using specially crafted requests. A successful exploit could result in the generation of manipulated links or responses, potentially leading to limited information disclosure or compromising...

EUVD-2026-36541

Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execution, via a crafted sequence of HTTP/2...

CVE-2026-12043 Heap double-free in AWS Common Runtime aws-c-http

Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execution, via a crafted sequence of HTTP/2...

CVE-2026-50634 Apache CXF: WS JSON request filter trusts metadata from an unvalidated first signature entry

A vulnerability in Apache CXF's JwsJsonContainerRequestFilter can be exploited to cause CXF to process metadata that was not authenticated by the accepted signature. This can bypass the application's assumption that accepted Content-Type or protected HTTP-header metadata came from a verified...

SwiftNIO NIOHTTP1: HTTPDecoder accepts unbounded HTTP/1 header blocks, enabling remote DoS

The HTTPDecoder in NIOHTTP1 enforces no limit on the total size of an HTTP/1 message's header block or on the number of header fields per message. A remote peer can submit an arbitrary number of small, valid headers in a single request and have them all accumulated into the resulting HTTPHeaders...

SUSE-SU-2026:2374-1 Security update for tomcat11

This update for tomcat11 fixes the following issues Update to Tomcat 11.0.22: - CVE-2026-41284: Unbounded read in WebDAV LOCK and PROPFIND handling bsc1265162. - CVE-2026-41293: HTTP/2 request headers not validated bsc1265163. - CVE-2026-42498: WebSocket authentication header exposure bsc1265165....

CVE-2026-44489: Improper Neutralization of CRLF Sequences in HTTP Headers

Axios is a promise based HTTP client for the browser and Node.js. From 1.15.2 to before 1.16.0, nested objects created by utils.merge e.g., config.proxy are still constructed as plain with Object.prototype in their chain. The setProxy function at lib/adapters/http.js:209-223 reads proxy.username,...

EUVD-2026-34092

daphne before 4.2.2 reconstructs a raw HTTP request from Twisted's parsed headers and feeds it to autobahn for WebSocket handshake processing. Twisted does not treat \x0b, \x0c, \x1c, \x1d, \x1e, or \x85 as header line separators, but autobahn decodes header values to str and calls splitlines. An...

Cross-site Scripting (XSS)

Overview org.apache.activemq:activemq-all is a package that puts together an ActiveMQ jar bundle. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the MessageServlet component. An attacker can inject arbitrary HTTP response headers by setting malicious JMS message...

CVE-2026-42253

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. The MessageServlet in the ActiveMQ web console API copies every JMS message property into an HTTP response header without any validation. This can allow...

CVE-2026-42253

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. The MessageServlet in the ActiveMQ web console API copies every JMS message property into an HTTP response header without any validation. This can allow...