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Vulnerabilities

Vulnerability · CVE-2021-22145

A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting.

Published Jul 21, 2021 · catalog updated Jun 17, 2026 · A memory disclosure vulnerability

Last checked Nov 8, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2021-22145 is not in CISA KEV. FIRST estimates a 76.25% chance of exploitation in the next 30 days. Check whether you run A memory disclosure vulnerability.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A memory disclosure vulnerability).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
76.25%
Remediation
Version ranges on file
Affected products
cpe elastic/elasticsearch · cpe oracle/communications cloud native core automated test suite

A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting. A user with the ability to submit arbitrary queries to Elasticsearch could submit a malformed query that would result in an error message returned containing previously used portions of a data buffer. This buffer could contain sensitive information such as Elasticsearch documents or authentication details.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe elastic/elasticsearch>= 7.10.0, <= 7.13.3
  • cpe oracle/communications cloud native core automated test suite1.8.0

How to fix CVE-2021-22145

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-22145 is not in CISA KEV. FIRST estimates a 76.25% chance of exploitation in the next 30 days. Check whether you run A memory disclosure vulnerability.

Which versions are affected?

Compare what you have installed with oracle/communications cloud native core automated test suite 1.8.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information; CWE-209. EPSS 76.25%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Technology hubs

Elasticsearch security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 21, 2021 · Monitored products — high

    Detected

    A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting. A user with the ability to submit arbitrary queries to Elasticsearch could submit a malformed query that would result in an error message returned containing previously used portions of a data buffer. This buffer could contain sensitive information such as Elasticsearch documents or authentication d

  2. Jun 17, 2026 · Monitored products — high

    Updated

    A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting. A user with the ability to submit arbitrary queries to Elasticsearch could submit a malformed query that would result in an error message returned containing previously used portions of a data buffer. This buffer could contain sensitive information such as Elasticsearch documents or authentication d

Sources

  • CVE.orgVulnerability recordCVE-2021-22145

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2021-22145

    A memory disclosure vulnerability was identified in Elasticsearch 7.10.0 to 7.13.3 error reporting. A user with the ability to submit arbitrary queries to Elasticsearch could submit a malformed query that would result in an error message returned containing previously used portions of a data buffer. This buffer could contain sensitive information such as Elasticsearch documents or authentication d

    nvd.nist.gov
  • Metasploit ModulesPublic exploit moduleauxiliary_scanner/http/elasticsearch_memory_disclosure

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/163648/ElasticSearch-7.13.3-Memory-Disclosure.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Packet Storm SecurityNov 8, 2026
  • Metasploit ModulesNov 7, 2026
  • CVE.orgNov 2, 2026
  • Monitored products — highNov 1, 2026