25 matches found
CVE-2026-110240
A flaw was found in Lancet. This vulnerability can lead to unauthorized access and information disclosure through a Server-Side Request Forgery SSRF protection bypass. The internal address validation logic incorrectly classifies private and transition IPv6 Internet Protocol version 6 addresses as...
CVE-2026-110240
Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external. Attackers can supply hostnames resolving to these address forms, including NAT64, 6to4 or Teredo embedding interna...
CVE-2026-110240
Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external. Attackers can supply hostnames resolving to these address forms, including NAT64, 6to4 or Teredo embedding interna...
CVE-2026-110240 Lancet through 2.3.9 SSRF Protection Bypass via netutil.IsInternalIP
Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external. Attackers can supply hostnames resolving to these address forms, including NAT64, 6to4 or Teredo embedding interna...
CVE-2026-110240
The software Lancet versions through 2.3.9 is vulnerable to a Server-Side Request Forgery (SSRF) protection bypass in the netutil.IsInternalIP function. The root cause is the misclassification of IPv6 private, link-local, CGNAT, and transition addresses as external addresses. Attackers can exploi...
PT-2026-111863
Lancet through 2.3.9 contains an SSRF protection bypass vulnerability in netutil.IsInternalIP that misclassifies IPv6 private, link-local, CGNAT and transition addresses as external. Attackers can supply hostnames resolving to these address forms, including NAT64, 6to4 or Teredo embedding interna...
PYSEC-2026-4096 MCP Atlassian: SSRF Protection Bypass
Environment - Project: sooperset/mcp-atlassian - Affected function: validateurlforssrf - Affected path: header-based Jira/Confluence URL authentication flow - Tested endpoint: POST /mcp - Tested version: 2.14.5 Description The SSRF protection in validateurlforssrf can be bypassed with a URL...
CVE-2026-77085
n8n before 2.34.1 and 2.33.x before 2.33.4 contains an SSRF protection bypass in the SearXNG Agent tool. The tool sent requests to the user-supplied API URL using a raw HTTP client that did not route through n8n's centralized SSRF protection. On instances with N8NSSRFPROTECTIONENABLED=true, an...
CVE-2026-77069
n8n before 1.123.69, 2.33.4, and 2.34.1 contains an SSRF protection bypass in the OAuth2 credential authorization-code-to-access-token exchange. While OAuth2 discovery and dynamic-client-registration requests use n8n's SSRF-protected HTTP client, the token exchange uses a separate client with no...
PT-2026-78940
Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.34.1 n8n versions 2.33.x prior to 2.33.4 Description The SearXNG Agent tool contains a Server-Side Request Forgery SSRF protection bypass. This occurs because the tool utilizes a raw HTTP client to send requests to a...
PYSEC-2026-3684 ContextForge: DNS TOCTOU race condition causes SSRF protection bypass (`/admin/gateways/test`)
Summary The /admin/gateways/test endpoint validates submitted URLs by resolving the hostname at validation time and blocking private address ranges. The HTTP client independently re-resolves DNS at connection time with no IP binding between the two operations, creating a TOCTOU window exploitable...
GHSA-9HGC-G3W5-67CM ContextForge: DNS TOCTOU race condition causes SSRF protection bypass (`/admin/gateways/test`)
Summary The /admin/gateways/test endpoint validates submitted URLs by resolving the hostname at validation time and blocking private address ranges. The HTTP client independently re-resolves DNS at connection time with no IP binding between the two operations, creating a TOCTOU window exploitable...
PYSEC-2026-1581 Local Deep Research is Vulnerable to Server-Side Request Forgery (SSRF) in Download Service
Summary The download service downloadservice.py makes HTTP requests using raw requests.get without utilizing the application's SSRF protection saferequests.py. This can allow attackers to access internal services and attempt to reach cloud provider metadata endpoints AWS/GCP/Azure, as well as...
Security Bulletin: IBM Langflow Desktop 1.0.0 - 1.9.2 DNS Rebinding Bypasses SSRF Protection Allowing Access to Internal Services
Summary A Time-of-Check to Time-of-Use TOCTOU vulnerability in IBM Langflow Desktop's SSRF protection allows authenticated attackers to bypass internal network access restrictions using DNS rebinding attacks. The validateurlforssrf function validates URLs using socket.getaddrinfo, but...
CVE-2026-42346 Postiz: TOCTOU DNS rebinding bypasses all SSRF URL validation paths
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...
CVE-2026-42449
Summary: CVE-2026-42449 affects n8n-mcp SDK embedder paths where SSRF protection (SSRFProtection.validateUrlSync) fails to validate IPv4-mapped IPv6 addresses, enabling an attacker-controlled n8nApiUrl to cause the server to make HTTP requests to internal networks, cloud metadata endpoints, or lo...
CVE-2026-31943 LibreChat has SSRF protection bypass via IPv4-mapped IPv6 normalization in isPrivateIP
LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.3, isPrivateIP in packages/api/src/auth/domain.ts fails to detect IPv4-mapped IPv6 addresses in their hex-normalized form, allowing any authenticated user to bypass SSRF protection and make the server issue HTTP requests ...
GHSA-GP2F-7WCM-5FHX Craft CMS has Cloud Metadata SSRF Protection Bypass via DNS Rebinding
Summary The SSRF validation in Craft CMS’s GraphQL Asset mutation performs DNS resolution separately from the HTTP request. This Time-of-Check-Time-of-Use TOCTOU vulnerability enables DNS rebinding attacks, where an attacker’s DNS server returns different IP addresses for validation compared to t...
CVE-2025-68662 FinalDestination hostname matching allows SSRF protection bypass
Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, a hostname validation issue in FinalDestination could allow bypassing SSRF protections under certain conditions. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and...
