CVE-2026-54605

OAuth: Cross-origin token-request redirects can expose signed request metadata

Published Jul 28, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
OAuth is a Ruby wrapper for the OAuth 1.0 and 1.0a protocols, providing clients and servers. From 0.5.5 to 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-prq8-7wvh-44qh OAuth: Cross-origin token-request redirects can expose signed request metadata
History
Type Values Removed Values Added
First Time appeared Ruby-oauth
Ruby-oauth oauth
Vendors & Products Ruby-oauth
Ruby-oauth oauth
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description OAuth is a Ruby wrapper for the OAuth 1.0 and 1.0a protocols, providing clients and servers. From 0.5.5 to 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.
Title OAuth: Cross-origin token-request redirects can expose signed request metadata
Weaknesses CWE-200
CWE-346
CWE-918
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 28, 2026, 5:37 PM
Reserved
Jun 15, 2026, 7:45 PM
Status
Awaiting Analysis
Published
Jul 28, 2026, 5:16 PM
Modified
Oct 23, 2026, 11:10 PM