CVE-2022-24755: Bareos is open source software for backup, archiving, and recovery of data for operating systems

This week

HIGH 8.1REMOTEUPGRADE

CVE-2022-24755 is a high-severity flaw (CVSS 8.1) affecting bareos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Bareos is open source software for backup, archiving, and recovery of data for operating systems. When Bareos Director >= 18.2 >= 18.2 but prior to 21.1.0, 20.0.6, and 19.2.12 is built and configured for PAM authentication, it will skip authorization checks completely. Expired accounts and accounts with expired passwords can still login. This problem will affect users that have PAM enabled. Currently there is no authorization (e.g. check for expi

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-863
Published	2022-03-15
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: bareos

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

Am I affected?

Timeline

2022-03-15 15:15 UTCPublished CVE record published
2026-06-17 04:32 UTCUpdated Record last modified

bareos bareos UPGRADE

Affected: >= 18.2 and < 19.2.12 · >= 20.0.0 and < 20.0.6 · >= 21.0.0 and < 21.1.0

Fixed in: 19.2.12, 20.0.6, 21.1.0

Safe to downgrade to: a release before 18.2

1. Check installed version

apt-cache policy bareos || rpm -q bareos || bareos --version

2. UPGRADE to 19.2.12 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bareos

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bareos

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 18.2 (Debian / Ubuntu)

apt-cache madison bareos sudo apt install bareos=<VERSION_BEFORE_18.2> sudo apt-mark hold bareos

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

dnf --showduplicates list bareos sudo dnf downgrade bareos-<VERSION_BEFORE_18.2> sudo dnf versionlock add bareos

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-2022-24755?

bareos: upgrade to 19.2.12, 20.0.6, 21.1.0. Exact commands for each OS are on this page.

Is CVE-2022-24755 being exploited?

CVE-2022-24755 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-2022-24755 affect?

CVE-2022-24755 affects bareos. Severity is high (CVSS 8.1). Bareos is open source software for backup, archiving, and recovery of data for operating systems. When Bareos Director >= 18.2 >= 18.2 but prior to 21.1.0, 20.0.6, and 19.2.12 is built and configured for PAM authentication, it will skip aut

How urgent is CVE-2022-24755?

Priority 59/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-24756 HIGH 7.5 UPGRADE Bareos is open source software for backup, archiving, and recovery of data for operating systems

References

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