CVE-2026-32936 CoreDNS DoH GET path missing size validation causes CPU and memory amplification

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-HTTPS DoH GET path accepts oversized dns= query parameter values and performs URL query parsing, base64 decoding, and DNS message unpacking before rejecting the request. Unlike the POST path, which applies a...

CVE-2026-32936 CoreDNS DoH GET path missing size validation causes CPU and memory amplification

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-HTTPS DoH GET path accepts oversized dns= query parameter values and performs URL query parsing, base64 decoding, and DNS message unpacking before rejecting the request. Unlike the POST path, which applies a...

EUVD-2026-27442

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-HTTPS DoH GET path accepts oversized dns= query parameter values and performs URL query parsing, base64 decoding, and DNS message unpacking before rejecting the request. Unlike the POST path, which applies a...

CVE-2026-32936 CoreDNS DoH GET path missing size validation causes CPU and memory amplification

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-HTTPS DoH GET path accepts oversized dns= query parameter values and performs URL query parsing, base64 decoding, and DNS message unpacking before rejecting the request. Unlike the POST path, which applies a...

EUVD-2026-27440

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-QUIC DoQ server can be driven into unbounded goroutine and memory growth by a remote client that opens many QUIC streams and sends only 1 byte per stream. When the worker pool is full, CoreDNS still spawns a...

CVE-2026-32934 CoreDNS DNS-over-QUIC unbounded goroutine growth leads to denial of service

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-QUIC DoQ server can be driven into unbounded goroutine and memory growth by a remote client that opens many QUIC streams and sends only 1 byte per stream. When the worker pool is full, CoreDNS still spawns a...

CVE-2026-32934

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-QUIC DoQ server can be driven into unbounded goroutine and memory growth by a remote client that opens many QUIC streams and sends only 1 byte per stream. When the worker pool is full, CoreDNS still spawns a...

CVE-2026-32934

CoreDNS prior to version 1.14.3 is vulnerable: the DNS-over-QUIC (DoQ) server can spawn unbounded goroutines/memory growth when a remote client opens many QUIC streams and sends 1 byte per stream. With a full worker pool, CoreDNS still creates a goroutine per stream to wait for a worker token, an...

CVE-2026-32934 CoreDNS DNS-over-QUIC unbounded goroutine growth leads to denial of service

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-QUIC DoQ server can be driven into unbounded goroutine and memory growth by a remote client that opens many QUIC streams and sends only 1 byte per stream. When the worker pool is full, CoreDNS still spawns a...

EUVD-2026-27444

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports DoT, DoH, DoH3, DoQ, and gRPC because it trusts the transport writer's TsigStatus instead of performing verification itself. The DoH and DoH3 writer's TsigStatus...

CVE-2026-33190 CoreDNS TSIG authentication bypass on encrypted DNS transports

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports DoT, DoH, DoH3, DoQ, and gRPC because it trusts the transport writer's TsigStatus instead of performing verification itself. The DoH and DoH3 writer's TsigStatus...

CVE-2026-33190

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports DoT, DoH, DoH3, DoQ, and gRPC because it trusts the transport writer's TsigStatus instead of performing verification itself. The DoH and DoH3 writer's TsigStatus...

CVE-2026-33190

CoreDNS TSIG authentication bypass vulnerability (CVE-2026-33190) affects versions prior to 1.14.3 on non-plain-DNS transports. The tsig plugin trusts the transport writer’s TsigStatus() instead of verifying TSIG itself, causing unauthenticated remote access over DoT, DoH, DoH3, DoQ, and gRPC. Do...

CVE-2026-33190

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports DoT, DoH, DoH3, DoQ, and gRPC because it trusts the transport writer's TsigStatus instead of performing verification itself. The DoH and DoH3 writer's TsigStatus...

CLSA-2026-1778003565 Fix CVE(s): CVE-2026-40684, CVE-2026-40685, CVE-2026-40687

SECURITY UPDATE: out-of-bounds read in DNS reverse-lookup escape decoding when running against musl libc - debian/patches/CVE-2026-40684.patch: harden stringcopydnsdomain to consume 1, 2, or 3 digits incrementally instead of indexing past the input string when fewer than 3 digits follow a backsla...

CVE-2026-42364

An os command injection vulnerability exists in the DdnsSetting.cgi functionality of GeoVision LPC2011/LPC2211 1.10. A specially crafted DDNS configuration can lead to arbitrary command execution. An attacker can modify a configuration value to trigger this vulnerability...

CLSA-2026-1777946242 php: Fix of 13 CVEs

CVE-2018-14883: fix int overflow leading to heap overflow in exifthumbnailextract - CVE-2019-6977: fix imagecolormatch out-of-bounds write on heap in GD - CVE-2019-9022: fix memcpy with negative length via crafted DNS response - CVE-2019-9640: fix invalid read in exifprocessSOFn - CVE-2019-11042:...

PT-2026-37240

Name of the Vulnerable Software and Affected Versions Pi-hole FTL versions prior to 6.6.1 Description The dns.interface configuration field in Pi-hole FTL accepts newline characters without validation, which allows an attacker to inject arbitrary directives into the generated dnsmasq configuratio...

📄 OpenWrt 23.05 Remote Code Execution

OpenWrt version 23.05 suffers from an authenticated remote code execution vulnerability. Exploit Title: OpenWrt 23.05 - Authenticated Remote Code Execution RCE Date: 2026-01-17 Exploit Author: Ahmet Mersin Vendor Homepage: https://github.com/stangri/luci-app-https-dns-proxy Software Link:...

📄 SumatraPDF 3.5.2 Remote Code Execution

SumatraPDF versions 3.5.0 to 3.5.2 disable TLS hostname verification during update checks using INTERNETFLAGIGNORECERTCNINVALID and do not perform any signature or integrity validation on the downloaded installer. Exploit Title: SumatraPDF 3.5.2 - Remote Code Execution Date: 2026-02-10 Exploit...