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Ubuntu Security NoticesUSN-9085-1

USN-9085-1: Ruby OpenID vulnerability

Severity not listed 0 CVEs Published Nov 12, 2026 at 8:54 PM UTC

Summary

It was discovered that Ruby OpenID sent a request to the claimed identifier URL before verifying the signature of an OpenID response. A remote attacker could possibly use this issue to perform server-side request forgery attacks.

Products covered

A separate affected-products list was not included in the collected bulletin.

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 0

No CVE identifiers were listed in the collected bulletin.

Updates

  1. Published by Ubuntu

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.