High 7.2Published Jul 28, 2026

CVE-2026-54605OAuth: Cross-origin token-request redirects can expose signed request metadata

Updated under an hour ago (Oct 27, 2026, 11:30 PM ET)

Does this affect you?

It affects ruby-oauth oauth. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for ruby-oauth oauth

Exploited in the last 30 days

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: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-200, CWE-346, CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Jul 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ruby-oauth oauth ruby_oauth:oauth (from the name)	from 0.5.5, < 1.1.6	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.