EUVD-2026-84627

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, validateurlforssrf checks a hostname's resolved addresses, but Requests and urllib3 resolve the hostname again when connecting. A caller can use a short-lived DNS answer that is publi...

CVE-2026-77242 MCP Atlassian: Incomplete fix for CVE-2026-27826: DNS rebinding bypasses SSRF validation (validated IP not pinned)

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, validateurlforssrf checks a hostname's resolved addresses, but Requests and urllib3 resolve the hostname again when connecting. A caller can use a short-lived DNS answer that is publi...

CVE-2026-77242 MCP Atlassian: Incomplete fix for CVE-2026-27826: DNS rebinding bypasses SSRF validation (validated IP not pinned)

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, validateurlforssrf checks a hostname's resolved addresses, but Requests and urllib3 resolve the hostname again when connecting. A caller can use a short-lived DNS answer that is publi...

CVE-2026-77242 MCP Atlassian: Incomplete fix for CVE-2026-27826: DNS rebinding bypasses SSRF validation (validated IP not pinned)

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, validateurlforssrf checks a hostname's resolved addresses, but Requests and urllib3 resolve the hostname again when connecting. A caller can use a short-lived DNS answer that is publi...

CVE-2026-77242

The MCP Atlassian Model Context Protocol server for Confluence and Jira is vulnerable to Server-Side Request Forgery (SSRF) in versions prior to 0.22.0 . The root cause is an incomplete fix for CVE-2026-27826 where the validate_url_for_ssrf function checks resolved addresses, but the underlying R...

EUVD-2026-84606

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, header-supplied Jira or Confluence URLs are resolved and validated before the HTTP client resolves the hostname again for the connection. An unauthenticated caller can use a...

CVE-2026-77265

The mcp-atlassian Model Context Protocol server is vulnerable to Server-Side Request Forgery (SSRF) via DNS rebinding in versions prior to 0.22.0 . The flaw exists in the header-based authentication flow where the software uses a validate-then-use pattern. Specifically, the validate_url_for_ssrf ...

CVE-2026-77265 MCP Atlassian: SSRF via DNS Rebinding in Header-Based Authentication Flow

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, header-supplied Jira or Confluence URLs are resolved and validated before the HTTP client resolves the hostname again for the connection. An unauthenticated caller can use a...

CVE-2026-77265 MCP Atlassian: SSRF via DNS Rebinding in Header-Based Authentication Flow

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, header-supplied Jira or Confluence URLs are resolved and validated before the HTTP client resolves the hostname again for the connection. An unauthenticated caller can use a...

CVE-2026-77265 MCP Atlassian: SSRF via DNS Rebinding in Header-Based Authentication Flow

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, header-supplied Jira or Confluence URLs are resolved and validated before the HTTP client resolves the hostname again for the connection. An unauthenticated caller can use a...

CVE-2026-84301

FastGPT is an open-source LLM platform for building AI applications on a knowledge base. Prior to 4.15.2, the safe Axios request interceptor in packages/service/common/api/axios.ts validates a hostname with isInternalAddress before a later HTTP connection performs an independent DNS lookup,...

CVE-2026-84301 FastGPT safe axios SSRF guard still allows DNS rebinding TOCTOU on protected outbound requests

FastGPT is an open-source LLM platform for building AI applications on a knowledge base. Prior to 4.15.2, the safe Axios request interceptor in packages/service/common/api/axios.ts validates a hostname with isInternalAddress before a later HTTP connection performs an independent DNS lookup,...

CVE-2026-84301 FastGPT safe axios SSRF guard still allows DNS rebinding TOCTOU on protected outbound requests

FastGPT is an open-source LLM platform for building AI applications on a knowledge base. Prior to 4.15.2, the safe Axios request interceptor in packages/service/common/api/axios.ts validates a hostname with isInternalAddress before a later HTTP connection performs an independent DNS lookup,...

CVE-2026-84301

The open-source LLM platform FastGPT is vulnerable to a DNS rebinding attack in versions prior to 4.15.2 . The root cause is a time-of-check/time-of-use (TOCTOU) flaw in the safe Axios request interceptor located in packages/service/common/api/axios.ts. The system validates a hostname using isInt...

CVE-2026-84301 FastGPT safe axios SSRF guard still allows DNS rebinding TOCTOU on protected outbound requests

FastGPT is an open-source LLM platform for building AI applications on a knowledge base. Prior to 4.15.2, the safe Axios request interceptor in packages/service/common/api/axios.ts validates a hostname with isInternalAddress before a later HTTP connection performs an independent DNS lookup,...

CVE-2026-84301: Server-Side Request Forgery (SSRF)

FastGPT is an open-source LLM platform for building AI applications on a knowledge base. Prior to 4.15.2, the safe Axios request interceptor in packages/service/common/api/axios.ts validates a hostname with isInternalAddress before a later HTTP connection performs an independent DNS lookup,...

PT-2026-96902

Name of the Vulnerable Software and Affected Versions MCP Atlassian versions prior to 0.22.0 Description An unauthenticated caller can perform a Server-Side Request Forgery SSRF attack using a DNS-rebinding technique. The software employs a validate-then-use pattern where the validate url for ssr...

PT-2026-96838

Name of the Vulnerable Software and Affected Versions FastGPT versions prior to 4.15.2 Description A DNS rebinding issue exists in the safe Axios request interceptor located in packages/service/common/api/axios.ts. The system validates a hostname using the isInternalAddress function before the HT...

CVE-2026-77265: Server-Side Request Forgery (SSRF)

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, header-supplied Jira or Confluence URLs are resolved and validated before the HTTP client resolves the hostname again for the connection. An unauthenticated caller can use a...

CVE-2026-61743

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.2, Chartbrew's server/modules/safeRequest.js calls validateOutboundUrl to resolve and validate a target hostname, but request-promise performs a separate DNS...