Description
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 like ::ffff:7f00:1 directly or via redirects to fetch loopback, private, and cloud metadata services and read responses.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| germondai | trawl | 1.5.0 – < 1.10.0 | 1.10.0 |
References
- GitHub Security Advisory (GHSA-mj45-84p2-v77q) vendor-advisory
- https://github.com/germondai/trawl/commit/17cdb33a9a6a8200cf8f9fd6a57b295b04ee5173 patch
- https://github.com/germondai/trawl/pull/263 patch issue-tracking
- trawl v1.10.0 Release Notes release-notes
- https://github.com/germondai/trawl/blob/v1.9.3/apps/api/src/outbound-policy.ts#L55-L56 technical-description
- VulnCheck Advisory: Trawl 1.5.0 before 1.10.0 SSRF via IPv4-mapped IPv6 MCP Policy Bypass third-party-advisory