CVE-2012-4494: The Shibboleth authentication module 7.x-4.0 for Drupal does not properly check the active status of users, wh

Routine

MEDIUM 4.3DOWNGRADE

CVE-2012-4494 is a medium-severity flaw (CVSS 4.3) affecting shibb auth. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Shibboleth authentication module 7.x-4.0 for Drupal does not properly check the active status of users, which allows remote blocked users to access bypass intended access restrictions and possibly have other impacts by logging in.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-264
Published	2012-10-31
Last modified	2026-06-16

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

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-10-31 16:55 UTCPublished CVE record published
2026-06-16 23:45 UTCUpdated Record last modified

niif shibb auth DOWNGRADE

Affected: 7.x-4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.x-4.0

1. Check installed version

apt-cache policy shibb-auth || rpm -q shibb-auth || shibb-auth --version

2. No fixed release: DOWNGRADE to a release before 7.x-4.0 (Debian / Ubuntu)

apt-cache madison shibb-auth sudo apt install shibb-auth=<VERSION_BEFORE_7.x-4.0> sudo apt-mark hold shibb-auth

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

dnf --showduplicates list shibb-auth sudo dnf downgrade shibb-auth-<VERSION_BEFORE_7.x-4.0> sudo dnf versionlock add shibb-auth

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-2012-4494?

shibb auth: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-4494 being exploited?

CVE-2012-4494 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-2012-4494 affect?

CVE-2012-4494 affects shibb auth. Severity is medium (CVSS 4.3). The Shibboleth authentication module 7.x-4.0 for Drupal does not properly check the active status of users, which allows remote blocked users to access bypass intended access restrictions and possibly have other impacts by logging in.

How urgent is CVE-2012-4494?

Priority 31/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

References

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