CVE-2019-16060: The Airbrake Ruby notifier 4.2.3 for Airbrake mishandles the blacklist_keys configuration option and consequen

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2019-16060 is a critical-severity flaw (CVSS 9.8) affecting airbrake ruby. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Airbrake Ruby notifier 4.2.3 for Airbrake mishandles the blacklist_keys configuration option and consequently may disclose passwords to unauthorized actors. This is fixed in 4.2.4 (also, 4.2.2 and earlier are unaffected).

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	1.4% (top 27%)
CISA exploited list	No
Published	2019-09-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: airbrake

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

Am I affected?

Timeline

2019-09-06 19:15 UTCPublished CVE record published
2026-06-17 02:21 UTCUpdated Record last modified

airbrake airbrake ruby DOWNGRADE

Affected: 4.2.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2.3

1. Check installed version

apt-cache policy airbrake-ruby || rpm -q airbrake-ruby || airbrake-ruby --version

2. No fixed release: DOWNGRADE to a release before 4.2.3 (Debian / Ubuntu)

apt-cache madison airbrake-ruby sudo apt install airbrake-ruby=<VERSION_BEFORE_4.2.3> sudo apt-mark hold airbrake-ruby

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

dnf --showduplicates list airbrake-ruby sudo dnf downgrade airbrake-ruby-<VERSION_BEFORE_4.2.3> sudo dnf versionlock add airbrake-ruby

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-2019-16060?

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

Is CVE-2019-16060 being exploited?

CVE-2019-16060 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-2019-16060 affect?

CVE-2019-16060 affects airbrake ruby. Severity is critical (CVSS 9.8). The Airbrake Ruby notifier 4.2.3 for Airbrake mishandles the blacklist_keys configuration option and consequently may disclose passwords to unauthorized actors. This is fixed in 4.2.4 (also, 4.2.2 and earlier are unaffected).

How urgent is CVE-2019-16060?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Ruby vulnerabilities

References

← Back to latest CVEs