CVE-2026-50637

CVE-2026-50637 is a high-severity vulnerability in Pevans Metrics with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-93.

Key facts

Description

Metrics::Any::Adapter::Statsd versions before 0.04 for Perl does not protect against metric injections. The statsd protocol (and extensions) allow mutiple metrics, separated by newlines, to be sent per packet. The send method does not validate the contents of the metric names or values. If the names have newlines and statsd control characters (colon, pipe) then metric injections are possible. Version 0.04 fixed this by modifying the _make method to block metric names with characters below ASCII 32 (which includes the newline), or colons or pipes.

Frequently asked questions

What is CVE-2026-50637?
Metrics::Any::Adapter::Statsd versions before 0.04 for Perl does not protect against metric injections. The statsd protocol (and extensions) allow mutiple metrics, separated by newlines, to be sent per packet. The send method does not validate the contents of the metric names or values. If the names have newlines and statsd control characters (colon, pipe) then metric injections are possible. Version 0.04 fixed this by modifying the _make method to block metric names with characters below ASCII 32 (which includes the newline), or colons or pipes.
How severe is CVE-2026-50637?
CVE-2026-50637 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2026-50637 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-50637?
CVE-2026-50637 affects Pevans Metrics. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-50637?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-50637 have an EU (EUVD) identifier?
Yes. CVE-2026-50637 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36104.
When was CVE-2026-50637 published?
CVE-2026-50637 was published on 2026-06-10 and last updated on 2026-06-24.

References

Affected products (1)

Other CWE-93 (CRLF Injection) vulnerabilities

Browse all CWE-93 (CRLF Injection) vulnerabilities →