CVE-2026-6816: An access bypass vulnerability in Drupal TFA Basic Plugins allows users with the administer users permission t

Routine

LOW 3.8UPGRADE

CVE-2026-6816 is a low-severity flaw (CVSS 3.8) affecting tfa basic plugins. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An access bypass vulnerability in Drupal TFA Basic Plugins allows users with the administer users permission to view or generate recovery codes for other users. This issue affects TFA Basic Plugins: from 7.x-1.0 through 7.x-1.2.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.8 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-267
Published	2026-05-28
Last modified	2026-07-21

Publisher (CNA): Drupal.org · Vendor: tfa basic plugins project

Last updated 2026-07-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-28 23:16 UTCPublished CVE record published
2026-07-21 10:10 UTCUpdated Record last modified

tfa basic plugins project tfa basic plugins UPGRADE

Affected: >= 7.x-1.0 and < 7.x-1.3

Fixed in: 7.x-1.3

Safe to downgrade to: a release before 7.x-1.0

1. Check installed version

apt-cache policy tfa-basic-plugins || rpm -q tfa-basic-plugins || tfa-basic-plugins --version

2. UPGRADE to 7.x-1.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tfa-basic-plugins

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tfa-basic-plugins

Note

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

3. If no update is available yet, DOWNGRADE to a release before 7.x-1.0 (Debian / Ubuntu)

apt-cache madison tfa-basic-plugins sudo apt install tfa-basic-plugins=<VERSION_BEFORE_7.x-1.0> sudo apt-mark hold tfa-basic-plugins

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tfa-basic-plugins sudo dnf downgrade tfa-basic-plugins-<VERSION_BEFORE_7.x-1.0> sudo dnf versionlock add tfa-basic-plugins

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-2026-6816?

tfa basic plugins: upgrade to 7.x-1.3. Exact commands for each OS are on this page.

Is CVE-2026-6816 being exploited?

CVE-2026-6816 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-2026-6816 affect?

CVE-2026-6816 affects tfa basic plugins. Severity is low (CVSS 3.8). An access bypass vulnerability in Drupal TFA Basic Plugins allows users with the administer users permission to view or generate recovery codes for other users. This issue affects TFA Basic Plugins: from 7.x-1.0 through 7.x-1.2.

How urgent is CVE-2026-6816?

Priority 25/100. Public exploit reference

Software pages

Drupal vulnerabilities

References

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