crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

SUSE CVE-2026-81928

Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sigdata when re-encoding a message with a misplaced TSIG record. sigdata signs a message by re-encoding it, and removes TSIG records only from the additional section. A TSIG decoded into the answer or...

crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

Security Bulletin: IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) via the A2A agent invocation endpoint

Summary IBM ContextForge MCP Gateway contains a server-side request forgery SSRF vulnerability in its Agent-to-Agent A2A invocation endpoint POST /a2a/agentname/invoke. Unlike every other outbound egress path in the gateway, the A2A invocation path does not pin the DNS-resolved IP address at...

Security Bulletin: IBM ContextForge MCP Gateway is affected by server-side request forgery via DNS TOCTOU at tool invocation

Summary IBM ContextForge MCP Gateway mcp-contextforge-gateway validates REST tool target URLs for server-side request forgery SSRF only once, at tool-registration time. When the same tool is later invoked, the stored URL is used directly without re-validation or DNS-resolution pinning, allowing a...

resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses

A flaw was found in the resolv gem. An attacker controlling DNS responses e.g., a spoofed response or a malicious upstream DNS server can exploit this by sending crafted DNS responses containing many distinct unknown DNS resource record pairs or SvcParamKeys. This leads to uncontrolled memory...

resolv: Resolv gem: DNS allowlist and egress bypass, and cache poisoning via crafted hostnames

A flaw was found in the resolv gem. This vulnerability arises from the incorrect handling of DNS label lengths during message encoding. A remote attacker could exploit this by providing a specially crafted hostname to an application utilizing the resolv gem. This could lead to the bypass of...

resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses

A flaw was found in the resolv gem. An attacker controlling DNS responses e.g., a spoofed response or a malicious upstream DNS server can exploit this by sending crafted DNS responses containing many distinct unknown DNS resource record pairs or SvcParamKeys. This leads to uncontrolled memory...

resolv: Resolv gem: DNS allowlist and egress bypass, and cache poisoning via crafted hostnames

A flaw was found in the resolv gem. This vulnerability arises from the incorrect handling of DNS label lengths during message encoding. A remote attacker could exploit this by providing a specially crafted hostname to an application utilizing the resolv gem. This could lead to the bypass of...

github.com/mark3labs/mcp-go: mcp-go: DNS Rebinding vulnerability due to missing Host header validation

A flaw was found in mcp-go. This component failed to validate the Host header in HTTP requests, specifically within its StreamableHTTPServer and SSEServer transports. A remote attacker could exploit this by using a crafted web page to perform a DNS rebinding attack. This allows the attacker to...

github.com/mark3labs/mcp-go: mcp-go: DNS Rebinding vulnerability due to missing Host header validation

A flaw was found in mcp-go. This component failed to validate the Host header in HTTP requests, specifically within its StreamableHTTPServer and SSEServer transports. A remote attacker could exploit this by using a crafted web page to perform a DNS rebinding attack. This allows the attacker to...

EUVD-2026-69727

Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sigdata when re-encoding a message with a misplaced TSIG record. sigdata signs a message by re-encoding it, and removes TSIG records only from the additional section. A TSIG decoded into the answer or...

CVE-2026-81928

Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sigdata when re-encoding a message with a misplaced TSIG record. sigdata signs a message by re-encoding it, and removes TSIG records only from the additional section. A TSIG decoded into the answer or...

DEBIAN-CVE-2026-81928

Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sigdata when re-encoding a message with a misplaced TSIG record. sigdata signs a message by re-encoding it, and removes TSIG records only from the additional section. A TSIG decoded into the answer or...

Security update for c-ares (important)

openSUSE security update: security update for c-ares ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21721-1 Rating: important References: bsc1270416 bsc1276290 bsc1276291 Cross-References: CVE-2026-33630 CVE-2026-69184 CVE-2026-69186 CVSS scores:...

UBUNTU-CVE-2026-81928

Net::DNS versions before 1.57 for Perl allow memory exhaustion via unb...

Linux Distros Unpatched Vulnerability : CVE-2026-81928

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sigdata when re-encoding a message with a misplaced TSIG record. sigda...

CVE-2026-81928

Net::DNS versions before 1.57 for Perl allow memory exhaustion via unb...

CVE-2026-81928

Net::DNS versions before 1.57 for Perl are vulnerable to memory exhaustion via unbounded recursion in the sig_data function. The root cause: when re-encoding a decoded DNS message containing a misplaced TSIG record (in the answer or authority section rather than the additional section) with an em...

CVE-2026-81928 Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sig_data when re-encoding a message with a misplaced TSIG record

Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sigdata when re-encoding a message with a misplaced TSIG record. sigdata signs a message by re-encoding it, and removes TSIG records only from the additional section. A TSIG decoded into the answer or...