Unity Linux 20.1060e / 20.1070e Security Update: nginx (UTSA-2026-017548)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017548 advisory. A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrit...

Unity Linux 20.1060e / 20.1070e Security Update: c-ares (UTSA-2026-017414)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017414 advisory. A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS Domain Name Servers can lead to output of wrong hostnames...

RHEL 8 : bind (RHSA-2026:15890)

"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:15890 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named %NASLMINLEVEL...

PT-2026-39702

Name of the Vulnerable Software and Affected Versions dnsmasq affected versions not specified Description A buffer overflow in the extract addresses function allows an attacker to trigger a heap out-of-bounds read and cause a crash. This occurs when a malformed DNS response is processed, enabling...

Linux Distros Unpatched Vulnerability : CVE-2026-4891

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet...

SUSE CVE-2026-33811

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash...

CVE-2026-42344

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts is vulnerable to DNS rebinding TOCTOU — Time-of-Check to Time-of-Use. The function resolves the hostname via dns.resolve4/dns.resolve6 and check...

EUVD-2026-28856

Postiz is an AI social media scheduling tool. From version 2.16.6 to before version 2.21.7, all SSRF protections added in v2.21.4–v2.21.6 share a fundamental TOCTOU Time-of-Check-Time-of-Use vulnerability: isSafePublicHttpsUrl resolves DNS to validate the target IP, but subsequent fetch calls...

EUVD-2026-28854

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts is vulnerable to DNS rebinding TOCTOU — Time-of-Check to Time-of-Use. The function resolves the hostname via dns.resolve4/dns.resolve6 and check...

CVE-2026-42344 FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress allows SSRF on all protected endpoints

FastGPT is an AI Agent building platform. In versions 4.14.11 and prior, FastGPT's isInternalAddress function in packages/service/common/system/utils.ts is vulnerable to DNS rebinding TOCTOU — Time-of-Check to Time-of-Use. The function resolves the hostname via dns.resolve4/dns.resolve6 and check...

CLSA-2026-1778174719 Fix CVE(s): CVE-2026-40684

SECURITY UPDATE: Crash via malformed DNS response on musl libc systems - debian/patches/CVE-2026-40684.patch: handle musl libc dnexpand backslash-decimal escape oddity in stringcopydnsdomain - CVE-2026-40684...

FastGPT 安全漏洞

FastGPT is an open-source knowledge base question-answering system based on large language models developed by Labring. Versions of FastGPT 4.14.11 and earlier contain security vulnerabilities. These vulnerabilities stem from a DNS rebinding vulnerability in the isInternalAddress function, which...

CVE-2026-33811

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash...

UBUNTU-CVE-2026-33811

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash...

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

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Gotenberg's DNS rebinding bypasses SSRF validation on Chromium URL conversion routes

Summary FilterOutboundURL resolves the hostname, checks the resolved IPs against the private-address deny-list, and returns only the error. It discards the resolved addresses. Chromium later performs its own DNS resolution when it navigates to the URL. An attacker who controls DNS for a hostname...

Null Byte Interaction Error (Poison Null Byte)

Overview Affected versions of this package are vulnerable to Null Byte Interaction Error Poison Null Byte due to inadequate validation of domain name labels and lengths in the encodeDomainName and decodeDomainName components. An attacker can cause DNS cache poisoning, bypass domain validation, or...

GHSA-CM33-6792-R9FM Netty has a DNS Codec Input Validation Bypass (Encoder + Decoder)

Security Vulnerability Report: DNS Codec Input Validation Bypass in Netty Encoder + Decoder 1. Vulnerability Summary | Field | Value | |-------|-------| | Product | Netty | | Version | 4.2.12.Final and all prior versions with codec-dns | | Component | io.netty.handler.codec.dns.DnsCodecUtil | |...

EUVD-2026-28176

OpenClaw before 2026.4.10 contains a server-side request forgery vulnerability in browser navigation policy that allows attackers to bypass hostname validation through DNS rebinding attacks. Attackers can exploit inconsistent hostname resolution between validation and actual network requests to...

[SECURITY] Fedora 43 Update: squid-7.5-1.fc43

Squid is a high-performance proxy caching server for Web clients, supporting FTP and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups...