CVE-2020-5402: In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter

Q: How do I fix CVE-2020-5402?

cf-deployment: upgrade to 12.33.0; user account and authentication: upgrade to 74.14.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-5402 being exploited?

CVE-2020-5402 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-5402 affect?

CVE-2020-5402 affects cf-deployment, user account and authentication. Severity is high (CVSS 8.8). In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function when authenticating with external identity providers.

This month

HIGH 8.8UPGRADEUPGRADE

CVE-2020-5402 is a high-severity flaw (CVSS 8.8) affecting cf-deployment, user account and authentication. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function when authenticating with external identity providers.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-352
Published	2020-02-27
Last modified	2026-06-17

Publisher (CNA): Pivotal Software, Inc. · Vendor: cloudfoundry

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-02-27 20:15 UTCPublished CVE record published
2026-06-17 03:21 UTCUpdated Record last modified

cloudfoundry cf-deployment UPGRADE

Affected: < 12.33.0

Fixed in: 12.33.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cf-deployment || rpm -q cf-deployment || cf-deployment --version

2. UPGRADE to 12.33.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cf-deployment

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cf-deployment

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

cloudfoundry user account and authentication UPGRADE

Affected: < 74.14.0

Fixed in: 74.14.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy user-account-and-authentication || rpm -q user-account-and-authentication || user-account-and-authentication --version

2. UPGRADE to 74.14.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade user-account-and-authentication

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade user-account-and-authentication

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-5402?

cf-deployment: upgrade to 12.33.0; user account and authentication: upgrade to 74.14.0. Exact commands for each OS are on this page.

Is CVE-2020-5402 being exploited?

CVE-2020-5402 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-5402 affect?

CVE-2020-5402 affects cf-deployment, user account and authentication. Severity is high (CVSS 8.8). In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function when authenticating with external identity providers.

How urgent is CVE-2020-5402?

Priority 41/100. High severity

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References

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