K000162871: PowerDNS DNSdist vulnerability CVE-2026-40211

Security Advisory Description An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3...

[SECURITY] [DLA 4692-1] samba security update

Debian LTS Advisory DLA-4692-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany July 21, 2026 https://wiki.debian.org/LTS Package : samba Version : 2:4.13.13+dfsg-1deb11u8 CVE ID : CVE-2026-2340 CVE-2026-3012 CVE-2026-3238 CVE-2026-4408 CVE-2026-4480 Several...

Linux Distros Unpatched Vulnerability : CVE-2026-40211

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at...

CVE-2026-40211

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memo...

SUSE CVE-2026-40211

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memo...

CVE-2026-40211 Denial of service via crafted DoH3 queries

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memo...

CVE-2026-40211

Technical details about CVE-2026-40211 are not publicly available in the provided documents. Monitor for updates.

Malicious code in @tarojs/cli (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 59b4e6cd0fe6bd16c6fb2bd04e6542a2a3052182d8815a08b124df56f2d9fde2 On npm install, the package's postinstall script performs a reachability GET to https://taro.jd.com/ and, on success, invokes the package's own...

CVE-2026-35579

CoreDNS versions prior to 1.14.3 expose a TSIG authentication bypass on gRPC, QUIC, DoH, and DoH3 transports. In gRPC/QUIC, the server checks for a configured TSIG key name but never calls dns.TsigVerify(), so a matching key yields a nil tsigStatus and the request is treated as authenticated rega...

GHSA-QHMP-Q7XH-99RH CoreDNS has TSIG authentication bypass on DoT, DoH, DoH3, DoQ, and gRPC

Summary CoreDNS' tsig plugin can be bypassed on non-plain-DNS transports because it trusts the transport writer's TsigStatus instead of performing verification itself. In the attached PoC, plain DNS/TCP correctly rejects an invalid TSIG NOTAUTH, while the same invalid-TSIG request is accepted ove...

HTTPS Fetch, Windows shellcode stage, Reverse HTTP Stager Proxy

Fetch and execute an x86 payload from an HTTPS server. Custom shellcode stage. Tunnel communication over HTTP Module Options msf use payload/cmd/windows/https/x86/custom/reversehttpproxypstore msf payloadreversehttpproxypstore show actions ...actions... msf payloadreversehttpproxypstore set ACTIO...

UBUNTU-CVE-2026-24030

An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly...

CVE-2026-24030 Unbounded memory allocation for DoQ and DoH3

An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly...

CVE-2026-24030

DNSdist (DNS load balancer) has a vulnerability CVE-2026-24030 where processing DNS over QUIC or DNS over HTTP/3 payloads may allocate unbounded memory, potentially causing denial of service and, in some cases, an out-of-memory state. Debian’s advisory notes a fix in dnsdist for stable (trixie) v...

DNSdist -- vulnerabilities

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html reports: CVE-2026-0396: HTML injection in the web dashboard CVE-2026-0397: Information disclosure via CORS misconfiguration CVE-2026-24028: Out-of-bounds read when parsing DNS packets via Lua CVE-2026-24029: DN...

CVE-2026-33952

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, an unvalidated authlength field read from the network triggers a WINPRASSERT failure in rtsreadauthverifiernochecks, causing any FreeRDP client connecting through a malicious RDP Gateway to crash with SIGABR...

CVE-2026-33952

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, an unvalidated authlength field read from the network triggers a WINPRASSERT failure in rtsreadauthverifiernochecks, causing any FreeRDP client connecting through a malicious RDP Gateway to crash with SIGABR...

EUVD-2026-17221

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, an unvalidated authlength field read from the network triggers a WINPRASSERT failure in rtsreadauthverifiernochecks, causing any FreeRDP client connecting through a malicious RDP Gateway to crash with SIGABR...

CVE-2026-33952 FreeRDP: DoS via WINPR_ASSERT in rts_read_auth_verifier_no_checks

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, an unvalidated authlength field read from the network triggers a WINPRASSERT failure in rtsreadauthverifiernochecks, causing any FreeRDP client connecting through a malicious RDP Gateway to crash with SIGABR...

CVE-2026-33952

FreeRDP prior to 3.24.2 is affected by CVE-2026-33952, where an unvalidated auth_length read from the network triggers a WINPR_ASSERT() failure in rts_read_auth_verifier_no_checks() and causes a client crash via RPC-over-HTTP gateway. The issue is mitigated by upgrading to FreeRDP 3.24.2 or later...