{"id":"CVE-2026-122140","title":"Trawl 1.5.0 before 1.10.0 SSRF via IPv4-mapped IPv6 MCP Policy Bypass","summary":"Trawl 1.5.0 before 1.10.0 contains a server-side request forgery vulnerability that allows unauthenticated attackers to bypass the MCP outbound URL policy using IPv4-mapped IPv6 addresses. Attackers can supply hex-normalized addresses li…","severity":"medium","cvss":5.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-918"],"vendor":"germondai","product":"trawl","affected":["trawl >= 1.5.0 < 1.10.0"],"published":"2026-11-04","updated":"2026-11-04","sourceUpdated":"2026-11-04T20:36:57.196Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-122140","references":[{"url":"https://github.com/germondai/trawl/security/advisories/GHSA-mj45-84p2-v77q","label":"GitHub Security Advisory (GHSA-mj45-84p2-v77q)"},{"url":"https://github.com/germondai/trawl/commit/17cdb33a9a6a8200cf8f9fd6a57b295b04ee5173"},{"url":"https://github.com/germondai/trawl/pull/263"},{"url":"https://github.com/germondai/trawl/releases/tag/v1.10.0","label":"trawl v1.10.0 Release Notes"},{"url":"https://github.com/germondai/trawl/blob/v1.9.3/apps/api/src/outbound-policy.ts#L55-L56"},{"url":"https://www.vulncheck.com/advisories/trawl-1.5.0-before-1.10.0-ssrf-via-ipv4-mapped-ipv6-mcp-policy-bypass","label":"VulnCheck Advisory: Trawl 1.5.0 before 1.10.0 SSRF via IPv4-mapped IPv6 MCP Policy Bypass"}],"tags":["cve.org"],"ingestedAt":"2026-11-05T21:36:00.563Z","epss":0.0035,"epssPercentile":0.28796,"slug":"CVE-2026-122140","body":"## Overview\n\nTrawl 1.5.0 before 1.10.0 contains a server-side request forgery vulnerability that allows unauthenticated attackers to bypass the MCP outbound URL policy using IPv4-mapped IPv6 addresses. Attackers can supply hex-normalized addresses like ::ffff:7f00:1 directly or via redirects to fetch loopback, private, and cloud metadata services and read responses.\n\n## Affected\n\n- `trawl >= 1.5.0 < 1.10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":31.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}