Quick answers
- Is CVE-2026-63329 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-63329 being exploited in the wild.
- How severe is CVE-2026-63329?
- Medium severity, with a CVSS score of 4.9, published 21 September 2026.
- Which products and versions are affected?
- Warp Tech Warpgate before 0.25.6.
- Is there a fix for CVE-2026-63329?
- A patch was published on 2026-06-30. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-63329 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-63329?
- Check whether you run Warp Tech Warpgate at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in warpgate-protocol-http/src/proxy.rs where copy_server_request forwards client-supplied x-warpgate-username and x-warpgate-authentication-type headers before authenticated headers are appended. Request builders that preserve duplicate header values allow an authenticated attacker to inject identity headers that override authentication. The fix in v0.25.6 restricts reserved header forwarding in warpgate-common/src/http_headers.rs.
Affected products
- warp-tech Warpgate before 0.25.6
Timeline
- 2026-09-21: disclosed
- 2026-06-30: patched