CVE-2026-59296Network attack vector

Metric and log spoofing via unsanitized newlines

Published Aug 21, 2026 · Updated Aug 21, 2026

Injection in affected Micrometer releases allows remote attackers to spoof metrics and log records via crafted meter names or tags. The StatsD registry and LoggingMeterRegistry emit carriage returns and line feeds from names, tag keys, and tag values without neutralization. Reachability requires a Datadog or Etsy StatsD flavor or LoggingMeterRegistry plus user-controlled, unvalidated meter fields; injected lines can impersonate arbitrary metrics or log entries.

CVSS severity5.9
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Injection in affected Micrometer releases allows remote attackers to spoof metrics and log records via crafted meter names or tags. The StatsD registry and LoggingMeterRegistry emit carriage returns and line feeds from names, tag keys, and tag values without neutralization. Reachability requires a Datadog or Etsy StatsD flavor or LoggingMeterRegistry plus user-controlled, unvalidated meter fields; injected lines can impersonate arbitrary metrics or log entries.

The record

CVE
CVE-2026-59296
Published
Aug 21, 2026
Updated
Aug 21, 2026
Vendor
VMware
Product
Micrometer
Classifications
CWE-74, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 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=1.14.0 - 1.14.16
  2. Affected versionversion=1.15.0 - 1.15.12
  3. Affected versionversion=1.16.0 - 1.16.6
  4. Affected versionversion=1.17.0 - 1.17.0
  5. Affected versionversion=1.9.18 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

VMware · Micrometerversion=1.14.0 - 1.14.16; version=1.15.0 - 1.15.12; version=1.16.0 - 1.16.6; version=1.17.0 - 1.17.0; version=1.9.18 and earlier

Published CVSS scores

5.9VMwareCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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