Executive brief
AutoGPT is a platform used to create and manage autonomous AI agents. A security flaw allows authenticated users to bypass network restrictions and force the platform to connect to internal services that should be private, such as cloud metadata endpoints or internal databases. This could lead to the theft of sensitive internal data or unauthorized access to other systems within the organization's private network.
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in the SendWebRequestBlock component of AutoGPT. The validation function _is_ip_blocked() in backend/backend/util/request.py fails to normalize IPv4-mapped IPv6 addresses (e.g., ::ffff:a.b.c.d) before comparing them against IPv4 blocklists. Because Python's ipaddress module treats these as distinct types, the internal IPv4 address bypasses the filter. Additionally, the blocklist lacks special-use ranges like 100.64.0.0/10 (CGNAT). An attacker can exploit this by providing a hostname that resolves to an IPv4-mapped IPv6 address, allowing them to probe or interact with internal-only network services. The issue is fixed in version 0.6.52 by implementing proper IP normalization and expanding the blocklist.
Affected products
- Significant-Gravitas AutoGPT < 0.6.52
Timeline
- 2026-06-24: advisory: GitHub Security Advisory published
- 2026-06-26: disclosed: CVE published to NVD
- 2026-06-26: patched: Fix released in version 0.6.52