Elastic Eck Operator up to 3.4.1 Fleet Server exposure of sensitive information through environmental variables

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k1.51

Summaryinfo

A vulnerability classified as problematic has been found in Elastic Eck Operator up to 3.4.1. This affects an unknown part of the component Fleet Server. Performing a manipulation results in exposure of sensitive information through environmental variables. This vulnerability is reported as CVE-2026-72648. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Elastic Eck Operator up to 3.4.1. It has been classified as problematic. This affects some unknown processing of the component Fleet Server. The manipulation with an unknown input leads to a exposure of sensitive information through environmental variables vulnerability. CWE is classifying the issue as CWE-526. The product uses an environment variable to store unencrypted sensitive information. This is going to have an impact on confidentiality. The summary by CVE is:

Cleartext Storage of Sensitive Information in an Environment Variable (CWE-526) in Elastic Cloud on Kubernetes (ECK) can lead to information disclosure via Retrieve Embedded Sensitive Data (CAPEC-37). When ECK reconciles a Fleet Server resource that authenticates to Elasticsearch with a service account token, the token is written into the generated workload specification in cleartext rather than being referenced from the Kubernetes Secret that ECK maintains for the other credentials on the same path. Any principal able to read workload specifications in the affected namespace can therefore read a live Elasticsearch credential, even when Kubernetes RBAC does not grant that principal access to Secrets.

It is possible to read the advisory at discuss.elastic.co. This vulnerability is uniquely identified as CVE-2026-72648 since 08/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592.002 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Exposure of sensitive information through environmental variables
CWE: CWE-526 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/10/2026 CVE reserved
08/13/2026 +3 days Advisory disclosed
08/13/2026 +0 days VulDB entry created
08/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2026-72648 (🔒)
GCVE (CVE): GCVE-0-2026-72648
GCVE (VulDB): GCVE-100-389787

Entryinfo

Created: 08/13/2026 21:50
Changes: 08/13/2026 21:50 (52)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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