CVE-2026-54428 Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

CVE-2026-54399 Apache HttpComponents Core: Unbounded HTTP Header/Line Length in Default Configuration

Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive...

CVE-2026-54399

Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive...

CVE-2026-49088 Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure

Insertion of Sensitive Information into Log File CWE-532 in Kibana can lead to information disclosure. When the optional application performance monitoring APM instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to...

CVE-2026-49088

Kibana security advisory CVE-2026-49088 describes that when optional APM instrumentation is enabled, sensitive request header values may be logged in application logs, risking information disclosure (CWE-532). Affected versions include Kibana 8.x up to 8.18.8, 8.19.0–8.19.5, and 9.x 9.0.0–9.0.7, ...

CVE-2026-49088 Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure

Insertion of Sensitive Information into Log File CWE-532 in Kibana can lead to information disclosure. When the optional application performance monitoring APM instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to...

CVE-2026-49088 Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure

Insertion of Sensitive Information into Log File CWE-532 in Kibana can lead to information disclosure. When the optional application performance monitoring APM instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to...

CVE-2026-58399 @acastellon/auth has an authentication bypass via spoofable headers in validateToken()

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for...

EUVD-2026-41013

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for...

CVE-2026-58399 @acastellon/auth has an authentication bypass via spoofable headers in validateToken()

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for...

Kibana 8.18.9, 8.19.6, 9.0.8, 9.1.6 Security Update (ESA-2026-50)

Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure Insertion of Sensitive Information into Log File CWE-532 in Kibana can lead to information disclosure. When the optional application performance monitoring APM instrumentation is enabled, sensitive reques...

CVE-2026-13323

In Open VSX Registry before 1.0.2, the /vscode/unpkg/ endpoint serves user-supplied HTML files with Content-Type: text/html and without a Content-Security-Policy or Content-Disposition: attachment response header. An unauthenticated attacker can register a publisher account, upload a VSIX...

urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers

A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via ProxyManager.connectionfromurl.urlopen with assertsamehost=False, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitiv...

httpd: Apache HTTP Server: Out-of-bounds Read in mod_headers and mod_mime

A flaw was found in Apache HTTP Server. An out-of-bounds read vulnerability exists when modheaders and modmime are used with multiple response languages. This could allow a remote attacker to disclose sensitive information from memory or cause a denial of service...

httpd: incomplete fix for CVE-2023-38709

A flaw was found in httpd. The response headers are not sanitized before an HTTP response is sent when a malicious backend can insert a Content-Type, Content-Encoding, or some other headers. These issues lead to HTTP response splitting. This CVE provides a "complete" fix for CVE-2023-38709...

urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers

A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via ProxyManager.connectionfromurl.urlopen with assertsamehost=False, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitiv...

CVE-2026-49088: Insertion of Sensitive Information into Log File

Insertion of Sensitive Information into Log File CWE-532 in Kibana can lead to information disclosure. When the optional application performance monitoring APM instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to...

CVE-2026-54399: Uncontrolled Resource Consumption

Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive...

PT-2026-57500

Summary MCP SSE redirects could forward Authorization headers. In affected versions, a lower-trust caller or configured input path could execute or persist actions beyond the caller's intended authorization. This advisory is scoped to the named feature and configuration. It does not change...

PT-2026-54842

Name of the Vulnerable Software and Affected Versions Apache HttpComponents Core versions prior to 5.4.3 Apache HttpComponents Core versions prior to 5.5-beta2 Description An uncontrolled resource consumption issue exists in the HTTP/1.1 message parser. A remote attacker can trigger a denial of...