CVE-2017-8441
This bug could allow a user with restricted permissions to view data they should not have access to when performing certain operations against an index alias.
Does this matter?
Lower severity and a low EPSS score (0.73%). Track it; it rarely justifies an emergency change on its own.
Description
Elastic X-Pack Security versions prior to 5.4.1 and 5.3.3 did not always correctly apply Document Level Security to index aliases. This bug could allow a user with restricted permissions to view data they should not have access to when performing certain operations against an index alias.
- CVSS 3.0
- 4.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.73% probability · 54th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-279, CWE-200
- Affected
- elastic/x-pack
- Source
- security@elastic.co
EPSS 0.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://discuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952Vendor Advisory
- https://www.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-releasedRelease Notes, Vendor Advisory
- https://www.elastic.co/community/securityVendor Advisory
- https://discuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952Vendor Advisory
- https://www.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-releasedRelease Notes, Vendor Advisory
- https://www.elastic.co/community/securityVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.