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Fencer Vulns
high 8.4

CVE-2023-46672 json

Logstash Insertion of Sensitive Information into Log File

published 2023-11-15 2 y ago modified 2026-09-10 59 d ago also BIT-logstash-2023-46672 , EUVD-2023-50863

cvss
8.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

An issue was identified by Elastic whereby sensitive information is recorded in Logstash logs under specific circumstances.

The prerequisites for the manifestation of this issue are:

* Logstash is configured to log in JSON format https://www.elastic.co/guide/en/logstash/current/running-logstash-command-line.html , which is not the default logging format.

* Sensitive data is stored in the Logstash keystore and referenced as a variable in Logstash configuration.

Patch / fix

  • bitnami logstash 7.12.2, 8.11.1
  • Elastic Logstash 8.11.1

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
bitnami logstash
>=7.12.1, <7.12.2
>=8.10.0, <8.11.1
7.12.2
8.11.1

Affected products

  • Elastic Logstash

Classification

Weakness
  • CWE-532 Insertion of Sensitive Information into Log File

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.