CVE-2025-8904
Privilege escalation issue in Amazon EMR Secret Agent component
Amazon EMR Secret Agent creates a keytab file containing Kerberos credentials. This file is stored in the /tmp/ directory. A user with access to this directory and another account can potentially decrypt the keys and escalate to higher privileges. Users are advised to upgrade to Amazon EMR version 7.5 or higher. For Amazon EMR releases between 6.10 and 7.4, we strongly recommend that you run the bootstrap script and RPM files with the fix provided in the location below.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: AMZNAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| EMR Amazon |
≥ 6.10; < 7.4 (affected, semver)
Other versions: unaffected |
CNA: AMZN |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 9.0 critical |
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | CNA: AMZN |
| 3.1 / 8.5 high |
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H | CNA: AMZN |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-750-release.htmlCNA: AMZN · release-notes, patch
- https://aws.amazon.com/security/security-bulletins/AWS-2025-017/CNA: AMZN · vendor-advisory
- https://github.com/advisories/GHSA-hf8h-76fm-735vCNA: AMZN · third-party-advisory
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