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CVE-2019-13420

20
FAUCET Score

CVE-2019-13420 describes a timing side channel vulnerability present in Search Guard versions prior to 21.0, specifically affecting its internal user database. This medium-severity flaw (CVSS 5.9) has a low attack complexity and could allow an unauthenticated attacker to gain high confidentiality impact by inferring sensitive information. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 21.0CPE matchmatch criteria
cpe:2.3:a:search-guard:search_guard:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 30th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (5)

redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.10Fixed in: openshift-elasticsearch-plugin
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift3/ose-logging-elasticsearch5
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.9Fixed in: openshift-elasticsearch-plugin
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.9Fixed in: search-guard-2
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-logging-elasticsearch5

Vendor Advisories (1)

redhatCVE-2019-13420Low

search-guard: timing side channel issue when using the internal user database

Aug 13, 2019

References

docs.search-guard.com / 6.x-21/changelog-searchguard-6-x-21_0
Release NotesVendor Advisory
search-guard.com / cve-advisory
Vendor Advisory