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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-56233

Capgo - SSRF and Privilege Escalation via Path Traversal in Builder Upload Proxy

Description

Capgo before 12.128.2 contains a path traversal vulnerability in the builder upload proxy that allows authenticated users with build permissions to bypass upload restrictions. Attackers can append traversal sequences to the upload path, which are normalized by the WHATWG URL parser, enabling access to internal administrative endpoints with the privileged BUILDER_API_KEY header and resulting in server-side privilege escalation.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Capgo Capgo

Default version status: unaffected

  • 0 to < 12.128.2affected
  • 12.128.2unaffected

References