vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2021-22144

MEDIUM
6.5
CVSS Score
Published: July 26, 2021 at 11:48 AM UTC
Updated: June 17, 2026 at 03:36 AM UTC
2 products affected across 2 vendorsElasticsearchCommunications Cloud Native Core Automated Test Suite

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

Description

In Elasticsearch versions before 7.13.3 and 6.8.17 an uncontrolled recursion vulnerability that could lead to a denial of service attack was identified in the Elasticsearch Grok parser. A user with the ability to submit arbitrary queries to Elasticsearch could create a malicious Grok query that will crash the Elasticsearch node.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Elasticsearch· Elasticelastic-plugin
95%
v < 6.8.177.0.0 ≤ v < 7.13.3
Affected range stops below 6.8.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.13.3, so it looks safe — our inference, not a vendor statement
Communications Cloud Native Core Automated Test Suite· Oracle
95%
1.8.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://discuss.elastic.co/t/elasticsearch-7-13-3-and-6-8-17-security-update/278100
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210827-0006/
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuapr2022.html

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-674

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card