What is CVE-2026-54605?

CVE-2026-54605 is a high-severity vulnerability in Ruby-oauth Oauth, classified under Information Disclosure. CVSS score: 7.2/10. Published 2026-07-28.

How severe is CVE-2026-54605?

High severity. CVSS v3 base score is 7.2 out of 10.

SSRF in Ruby-oauth Oauth

CVE-2026-54605

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 follow…

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Ruby-oauth Oauth — versions >= 0.5.5, < 1.1.6

Weakness classification (CWE)

CWE-200 — Information Disclosure
CWE-346 — Origin Validation Error
CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-54605?: CVE-2026-54605 is a high-severity vulnerability in Ruby-oauth Oauth, classified under Information Disclosure. CVSS score: 7.2/10. Published 2026-07-28.
How severe is CVE-2026-54605?: High severity. CVSS v3 base score is 7.2 out of 10.