CVE-2020-7692

Name: CVE-2020-7692
Creator: NVD / NIST
Published: 2020-07-09T14:15:11.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.59%

Last modified Jun 17, 2026

CVE-2020-7692 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized. EPSS estimates a 1.59% chance of exploitation in the next 30 days.

Description

PKCE support is not implemented in accordance with the RFC for OAuth 2.0 for Native Apps. Without the use of PKCE, the authorization code returned by an authorization server is not enough to guarantee that the client that issued the initial authorization request is the one that will be authorized. An attacker is able to obtain the authorization code using a malicious app on the client-side and use it to gain authorization to the protected resource. This affects the package com.google.oauth-client:google-oauth-client before 1.31.0.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

1.59%

72.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Google	Oauth Client Library For Java	< 1.31.0

References

https://github.com/googleapis/google-oauth-java-client/commit/13433cd7dd06267fc261f0b1d4764f8e3432c824Patch, Third Party Advisory
https://github.com/googleapis/google-oauth-java-client/issues/469Third Party Advisory
https://lists.apache.org/thread.html/r3db6ac73e0558d64f0b664f2fa4ef0a865e57c5de20f8321d3b48678%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/reae8909b264d1103f321b9ce1623c10c1ddc77dba9790247f2c0c90f%40%3Ccommits.druid.apache.org%3E
https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEOAUTHCLIENT-575276Third Party Advisory
https://tools.ietf.org/html/rfc7636%23section-1Exploit, Third Party Advisory
https://tools.ietf.org/html/rfc8252%23section-8.1Exploit, Third Party Advisory
https://github.com/googleapis/google-oauth-java-client/commit/13433cd7dd06267fc261f0b1d4764f8e3432c824Patch, Third Party Advisory
https://github.com/googleapis/google-oauth-java-client/issues/469Third Party Advisory
https://lists.apache.org/thread.html/r3db6ac73e0558d64f0b664f2fa4ef0a865e57c5de20f8321d3b48678%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/reae8909b264d1103f321b9ce1623c10c1ddc77dba9790247f2c0c90f%40%3Ccommits.druid.apache.org%3E
https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEOAUTHCLIENT-575276Third Party Advisory
https://tools.ietf.org/html/rfc7636%23section-1Exploit, Third Party Advisory
https://tools.ietf.org/html/rfc8252%23section-8.1Exploit, Third Party Advisory

Timeline

Published: Jul 9, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7692?

How severe is CVE-2020-7692?

CVE-2020-7692 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.59% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7692?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-7692?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST