VULNERABILITY INTELLIGENCE

CVE-2021-22573

CVSS score8.7 HIGH

EPSS probability0.30%

CISA KEVNot currently listed

Published2022-05-03

Last modified2026-06-17

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

Description

The vulnerability is that IDToken verifier does not verify if token is properly signed. Signature verification makes sure that the token's payload comes from valid provider, not from someone else. An attacker can provide a compromised token with custom payload. The token will pass the validation on the client side. We recommend upgrading to version 1.33.3 or above

Weakness classification

cve-coordination@google.com: CWE-347
nvd@nist.gov: CWE-347

Primary references

cve-coordination@google.com — Issue Tracking, Patch, Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Patch, Release Notes, Third Party Advisory