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Fencer Vulns
high 7.4

CVE-2020-7692 json

Improper Authorization

published 2020-07-09 6 y ago modified 2026-07-08 4 mo ago also GHSA-f263-c949-w85g , EUVD-2021-2044

cvss
7.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven com.google.oauth-client:google-oauth-client 1.31.0
  • n/a com.google.oauth-client:google-oauth-client 1.31.0
  • google-oauth-client-java Debian 14, Debian 13, Debian 12 1.28.0-2

debian advisories DEBIAN-CVE-2020-7692

  • jenkins openshift 4.9 2.361.1.1675668150-1.el8
  • jenkins-2-plugins openshift 4.9 4.9.1675668922-1.el8
  • jenkins ocp tools 4.12 2.414.3.1698293911-3.el8
  • jenkins-2-plugins ocp tools 4.12 4.12.1698294000-1.el8
  • jenkins ocp tools 4.13 2.387.3.1684911776-3.el8
  • jenkins-2-plugins ocp tools 4.13 4.13.1684911916-1.el8
  • jenkins ocp tools 4.12 2.426.3.1706515686-3.el8
  • jenkins-2-plugins ocp tools 4.12 4.12.1706515741-1.el8

red hat advisories RHSA-2023:0777RHSA-2023:6172RHSA-2023:3299RHSA-2024:0778RHSA-2023:0560

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-7692 updated cvss 7.4

google-oauth-client: missing PKCE support in accordance with the RFC for OAuth 2.0 for Native Apps can lead to improper authorization

  • Red Hat Fuse 7 google-oauth-client
    affected: no fix available “Fix deferred”
  • Red Hat JBoss Fuse 6 google-oauth-client Red Hat OpenShift Container Platform 3.11 jenkins-2-plugins
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Developer Tools and Services for OCP 4.12 jenkins-2-plugins 4.12.1698294000-1.el8, jenkins-2-plugins 4.12.1706515741-1.el8
    fixed: vendor fix RHSA-2023:6172
  • Red Hat OpenShift Developer Tools and Services for OCP 4.13 jenkins-2-plugins 4.13.1684911916-1.el8
    fixed: vendor fix RHSA-2023:3299
  • Red Hat OpenShift Container Platform 4.9 jenkins-2-plugins 4.9.1675668922-1.el8
    fixed: vendor fix RHSA-2023:0777
  • Red Hat OpenShift Container Platform 4.10 jenkins-2-plugins 4.10.1675144701-1.el8
    fixed: vendor fix RHSA-2023:0560
  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/elasticsearch6-rhel8 Red Hat OpenShift Developer Tools and Services for OCP 4.12 jenkins 2.414.3.1698293911-3.el8, jenkins 2.426.3.1706515686-3.el8 Red Hat OpenShift Developer Tools and Services for OCP 4.13 jenkins 2.387.3.1684911776-3.el8 Red Hat OpenShift Container Platform 4.9 jenkins 2.361.1.1675668150-1.el8 Red Hat OpenShift Container Platform 4.10 cri-o 1.23.5-5.rhaos4.10.gitd9dec98.el7, cri-o 1.23.5-5.rhaos4.10.gitd9dec98.el8
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • tools.ietf.org https://tools.ietf.org/html/rfc8252%23section-8.1 referenced PoC, tagged "exploit" by a source, unverified
  • tools.ietf.org https://tools.ietf.org/html/rfc7636%23section-1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N
GitHub 3.1 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven com.google.oauth-client:google-oauth-client
<1.31.0
1.31.0

Affected products

  • n/a com.google.oauth-client:google-oauth-client

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.