CVE-2017-7474: It was found that the Keycloak Node.js adapter 2.5 - 3.0 did not handle invalid tokens correctly

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2017-7474 is a critical-severity flaw (CVSS 9.8) affecting keycloak-nodejs-auth-utils. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

It was found that the Keycloak Node.js adapter 2.5 - 3.0 did not handle invalid tokens correctly. An attacker could use this flaw to bypass authentication and gain access to restricted information, or to possibly conduct further attacks.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-253
Published	2017-05-12
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: keycloak

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

Am I affected?

Timeline

2017-05-12 19:29 UTCPublished CVE record published
2026-06-17 01:24 UTCUpdated Record last modified

keycloak keycloak-nodejs-auth-utils DOWNGRADE

Affected: 2.5.0 · 2.5.0 cr1 · 2.5.1 · 2.5.2 · 2.5.3 · 2.5.4 · 2.5.5 · 2.5.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.5.0

1. Check installed version

apt-cache policy keycloak-nodejs-auth-utils || rpm -q keycloak-nodejs-auth-utils || keycloak-nodejs-auth-utils --version

2. No fixed release: DOWNGRADE to a release before 2.5.0 (Debian / Ubuntu)

apt-cache madison keycloak-nodejs-auth-utils sudo apt install keycloak-nodejs-auth-utils=<VERSION_BEFORE_2.5.0> sudo apt-mark hold keycloak-nodejs-auth-utils

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list keycloak-nodejs-auth-utils sudo dnf downgrade keycloak-nodejs-auth-utils-<VERSION_BEFORE_2.5.0> sudo dnf versionlock add keycloak-nodejs-auth-utils

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2017-7474?

keycloak-nodejs-auth-utils: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-7474 being exploited?

CVE-2017-7474 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-2017-7474 affect?

CVE-2017-7474 affects keycloak-nodejs-auth-utils. Severity is critical (CVSS 9.8). It was found that the Keycloak Node.js adapter 2.5 - 3.0 did not handle invalid tokens correctly. An attacker could use this flaw to bypass authentication and gain access to restricted information, or to possibly conduct further attacks.

How urgent is CVE-2017-7474?

Priority 61/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Node.js vulnerabilities · Keycloak vulnerabilities

References

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