CVE-2026-50638: Metrics::Any::Adapter::DogStatsd versions before 0.04 for Perl does not protect against metric injections. Th

Q: How do I fix CVE-2026-50638?

metrics\: upgrade to 0.04. Exact commands for each OS are on this page.

Q: Is CVE-2026-50638 being exploited?

CVE-2026-50638 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-50638 affect?

CVE-2026-50638 affects metrics\. Severity is critical (CVSS 9.1). Metrics::Any::Adapter::DogStatsd versions before 0.04 for Perl does not protect against metric injections. The statsd protocol (and extensions such as dogstatsd) allow mutiple metrics, separated by newlines, to be sent per packet. Metrics

Q: How urgent is CVE-2026-50638?

Priority 44/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.1REMOTEUPGRADE

CVE-2026-50638 is a critical-severity flaw (CVSS 9.1) affecting metrics\. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Metrics::Any::Adapter::DogStatsd versions before 0.04 for Perl does not protect against metric injections. The statsd protocol (and extensions such as dogstatsd) allow mutiple metrics, separated by newlines, to be sent per packet. Metrics::Any::Adapter::DogStatsd which extends Metrics::Any::Adapter::Statsd, which has a similar vulnerability. In addition, the _tags function does not check tags for newlines or statsd control characters. The tags

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-93, CWE-150
Published	2026-06-10
Last modified	2026-10-26

Publisher (CNA): CPANSec · Vendor: pevans

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-10 19:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

pevans metrics\ UPGRADE

Affected: < 0.04

Fixed in: 0.04

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.04 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade metrics

Note

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

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-2026-50638?

metrics\: upgrade to 0.04. Exact commands for each OS are on this page.

Is CVE-2026-50638 being exploited?

CVE-2026-50638 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-2026-50638 affect?

CVE-2026-50638 affects metrics\. Severity is critical (CVSS 9.1). Metrics::Any::Adapter::DogStatsd versions before 0.04 for Perl does not protect against metric injections. The statsd protocol (and extensions such as dogstatsd) allow mutiple metrics, separated by newlines, to be sent per packet. Metrics

How urgent is CVE-2026-50638?

Priority 44/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Perl vulnerabilities

Related CVEs

CVE-2026-50639 MEDIUM 6.5 UPGRADE Metrics::Any::Adapter::SignalFx versions before 0.04 for Perl does not protect against metric injections. The
CVE-2026-50637 HIGH 8.2 UPGRADE Metrics::Any::Adapter::Statsd versions before 0.04 for Perl does not protect against metric injections. The s

References

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