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Exposure of Sensitive Information to an Unauthorized Actor

CVE-2026-54605

High
7.2/10

Summary

OAuth is a Ruby wrapper for the OAuth 1.0 and 1.0a protocols, providing clients and servers. From 0.5.5 through 1.1.5, OAuth::Consumer#token_request parses the raw Location header of a 300 to 399 redirect returned by the OAuth server and follows the redirect recursively, which can mutate the consumer's configuration and expose signed OAuth request metadata, including the Authorization header, to a cross-origin host. This issue is fixed in version 1.1.6.

  • LOW
  • NETWORK
  • LOW
  • CHANGED
  • NONE
  • NONE
  • LOW
  • NONE

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.

References

Advisory Timeline

  • Published