CVE-2021-22146
While in the default setting the anonymous user has no permissions and is unable to successfully query any Elasticsearch APIs, an attacker could leverage the anonymous user to gain insight into certain details of a deployed cluster.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 35.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
All versions of Elastic Cloud Enterprise has the Elasticsearch “anonymous” user enabled by default in deployed clusters. While in the default setting the anonymous user has no permissions and is unable to successfully query any Elasticsearch APIs, an attacker could leverage the anonymous user to gain insight into certain details of a deployed cluster.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 35.78% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · first 26 July 2021
- CISA KEV
- Not listed
- Affected
- elastic/elasticsearch
- Source
- security@elastic.co
EPSS 35.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/163655/Elasticsearch-ECE-7.13.3-Database-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- https://discuss.elastic.co/t/elastic-cloud-enterprise-security-update/279180Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210819-0005/Third Party Advisory
- http://packetstormsecurity.com/files/163655/Elasticsearch-ECE-7.13.3-Database-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- https://discuss.elastic.co/t/elastic-cloud-enterprise-security-update/279180Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210819-0005/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.