[SECURITY] [DSA 6278-1] nginx security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6278-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 16, 2026 https://www.debian.org/security/faq -...

Resource Exhaustion

XWiki Platform is vulnerable to Resource Exhaustion. The vulnerability is due to missing query limits in REST API endpoints that enumerate database list properties, which allows an attacker to exhaust server resources by triggering large unbounded queries on large wiki instances...

OESA-2026-2316 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to...

OESA-2026-2319 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to...

OESA-2026-2296 tomcat security update

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process. Security Fixes: Allocation of Resources Without...

BIT-NGINX-GATEWAY-2026-40460 NGINX ngx_quic_module vulnerability

When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

CVE-2026-45781 MCP Registry: OCI ownership validation fails open on upstream rate limits, allowing attacker-controlled package claims

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.9, OCI ownership validation skips label-match check when upstream OCI registry returns HTTP 429, letting any authenticated publisher bind their io.github./ namespace to OCI images the...

CVE-2026-45781

The CVE-2026-45781 issue affects the MCP Registry: before 1.7.9, OCI ownership validation can skip the label-match check when upstream OCI registry responses are HTTP 429. This allows an authenticated publisher to bind their io.github./* namespace to OCI images they do not control because the lab...

CVE-2026-45781 MCP Registry: OCI ownership validation fails open on upstream rate limits, allowing attacker-controlled package claims

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.9, OCI ownership validation skips label-match check when upstream OCI registry returns HTTP 429, letting any authenticated publisher bind their io.github./ namespace to OCI images the...

CVE-2026-46356 Fleet: IP spoofing allows bypassing API rate limiting

Fleet is open source device management software. Prior to version 4.80.1, a vulnerability in Fleet's IP extraction logic allows unauthenticated attackers to bypass API rate limiting by spoofing client IP headers. This may allow brute-force login attempts or other abuse against Fleet instances...

CVE-2026-46356 Fleet: IP spoofing allows bypassing API rate limiting

Fleet is open source device management software. Prior to version 4.80.1, a vulnerability in Fleet's IP extraction logic allows unauthenticated attackers to bypass API rate limiting by spoofing client IP headers. This may allow brute-force login attempts or other abuse against Fleet instances...

CVE-2026-24000 Fleet has a rate limiting bypass via untrusted client IP headers

Fleet is open source device management software. Prior to version 4.80.1, Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and bypass per-IP rate limitin...

netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood

A flaw was found in Netty. A remote user can trigger a Denial of Service DoS against a Netty HTTP/2 server by sending a flood of CONTINUATION frames. The server's lack of a limit on these frames, coupled with a bypass of size-based mitigations using zero-byte frames, allows an attacker to consume...

PT-2026-40979

Name of the Vulnerable Software and Affected Versions Fleet versions prior to 4.80.1 Description An issue in the IP extraction logic allows unauthenticated attackers to bypass API rate limiting by spoofing client IP headers. The software extracts client IP addresses from request headers...

Linux Distros Unpatched Vulnerability : CVE-2026-44248

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed an...

PT-2026-41161

Name of the Vulnerable Software and Affected Versions opentelemetry-java versions prior to 1.62.0 Description A flaw in the baggage propagation implementation within opentelemetry-api and opentelemetry-extension-trace-propagators allows for unbounded memory allocation and CPU consumption when...

UBUNTU-CVE-2026-44248

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...