CVE-2026-73116 PUBLISHED

Apache Juneau: REST client forwards credentials to a different origin when following HTTP redirects

Assigner: apache
Reserved: 10.08.2026 Published: 05.11.2026 Updated: 05.11.2026

Insufficiently Protected Credentials vulnerability in Apache Juneau.

The Apache Juneau RestClient followed HTTP redirects while keeping credential headers from the original request, so a server that redirected the client to a different host or port, or from HTTPS to HTTP, could receive headers such as Authorization, Cookie, Proxy-Authorization and X-API-Key.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue. The fix applies to HTTP clients created by the RestClient builder; applications that supply their own HttpClient must disable automatic redirects or strip credential headers on cross-origin redirects themselves.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 10

Product Status

Vendor Apache Software Foundation
Product Apache Juneau
Versions Default: unaffected
  • affected from 0 to 9.2.1 (excl.)
Vendor Apache Software Foundation
Product Apache Juneau
Versions Default: unaffected
  • affected from 0 to 9.2.1 (excl.)

References

Problem Types

  • CWE-522 Insufficiently Protected Credentials CWE