CVE-2026-8788Network attack vector

Metric injection via unvalidated set values

Published May 18, 2026 · Updated May 18, 2026

Metric injection in Net::Statsd::Lite 0 through 0.10.0 allows remote attackers to add StatsD metrics via untrusted set values. The set_add path passes its string value to record_metric without rejecting newlines, colons, pipes, or other control characters, allowing delimiters to form new protocol fields or records. Exploitation requires an application to pass network-controlled data into set_add; injected metrics can corrupt monitoring data sent to the configured StatsD daemon.

CVSS severity7.3
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Metric injection in Net::Statsd::Lite 0 through 0.10.0 allows remote attackers to add StatsD metrics via untrusted set values. The set_add path passes its string value to record_metric without rejecting newlines, colons, pipes, or other control characters, allowing delimiters to form new protocol fields or records. Exploitation requires an application to pass network-controlled data into set_add; injected metrics can corrupt monitoring data sent to the configured StatsD daemon.

The record

CVE
CVE-2026-8788
Published
May 18, 2026
Updated
May 18, 2026
Vendor
Robert Rothenberg
Product
Net::Statsd::Lite
Classifications
CWE-150, CWE-93, T1565
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 18, 2026CVE publishedPublication date reported by the CVE source.
  2. May 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Robert Rothenberg · Net::Statsd::Liteversion=0 <=0.10.0

Published CVSS scores

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-150Improper Neutralization of Escape, Meta, or Control Sequences
CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')
T1565Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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