What is CVE-2021-22135?

CVE-2021-22135 is a medium-severity vulnerability in Elastic Elasticsearch, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-05-13.

How severe is CVE-2021-22135?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-22135 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Elastic Elasticsearch

CVE-2021-22135

Elasticsearch versions before 7.11.2 and 6.8.15 contain a document disclosure flaw was found in the Elasticsearch suggester and profile API when Document and Field Level Security are enabled. The suggester and profile API are normally disabled for an index when document level security is enabled on the index. Certain queries are able to enable the profiler and suggester which could lead to disclosing the existence of documents and fields the attacker should not be able to view.

Vulnerability class: Information Disclosure

EPSS: 0.012 (64.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Elastic Elasticsearch — versions before 7.11.2 and 6.8.15

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

muneebaashiq/MBProjects

References

security@elastic.co (x_refsource_MISC, Vendor Advisory)
security@elastic.co (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-22135?: CVE-2021-22135 is a medium-severity vulnerability in Elastic Elasticsearch, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-05-13.
How severe is CVE-2021-22135?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-22135 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.