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Vulnerability record · CVE-2026-54605 · published 28 July 2026

CVE-2026-54605: Information exposure vulnerability

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.

7.2 CVSS 3.1 High EPSS 0.19% · top 92.4% CWE-200 · Information exposureCWE-346 · Origin validation error Awaiting Analysis
7.2CVSS 3.1 base score
0.19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
9 Sep 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-54605), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.