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CVE-2026-54605

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

Published: Jul 28, 2026Updated: Jul 28, 2026 Sources: CVE List NVDCWE-200
7.2HIGH
NVD MITRE
EPSS Score
0.1%
Top 96.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-200CWE-346CWE-918

Affected Products

ruby-oauth
oauth

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Collection
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/ruby-oauth/oauth/commit/d069dc8c4c9631947451215f07460d6cdf0caf3f
github.com
https://github.com/ruby-oauth/oauth/releases/tag/v1.1.6
github.com
https://github.com/ruby-oauth/oauth/security/advisories/GHSA-prq8-7wvh-44qh
github.com

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