High severity · published Oct 29, 2026
CVE-2026-115709
Improper Link Resolution Before File Access ('Link Following') in Elastic Cloud Enterprise (ECE) Leading to Information Disclosure and Data Loss
New
8.2
CVSS
–
EPSS
No
On KEV
Description
Improper Link Resolution Before File Access ('Link Following') (CWE-59) in Elastic Cloud Enterprise (ECE) can lead to unauthorized disclosure and loss of data belonging to other deployments on the same host via Symlink Attack (CAPEC-132).
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EC
Elastic Cloud Enterprise · Elastic
2.6.0 through 3.8.5; 4.0.0 through 4.2.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-115709
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-115709
discuss.elastic.co
https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-216/391263
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