Improper certificate validation in Elastic APM agent for Ruby
Priority LOW 33CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295.
Summary
A TLS certificate validation flaw was found in Elastic APM agent for Ruby versions before 2.9.0. When specifying a trusted server CA certificate via the 'server_ca_cert' setting, the Ruby agent would not properly verify the certificate returned by the APM server. This could result in a man in the middle style attack against the Ruby agent.
Why it matters now
EPSS 0.00644 51st percentileScored 2026-11-07
Fix Fixed Elastic APM agent for Ruby (Elastic): 2.9.0elastic-apm (RubyGems): 2.9.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Elastic | Elastic APM agent for Ruby | before 2.9.0 | 2.9.0 | Patch available | CNA |
| — | elastic-apm (RubyGems) | before 2.9.0 | 2.9.0 | Patch available | GHSA-35j2-p8fh-x966 |
- Elastic APM agent for Ruby VendorElastic Affected before 2.9.0 Fixed in 2.9.0 Patch available CNA
- elastic-apm (RubyGems) Vendor— Affected before 2.9.0 Fixed in 2.9.0 Patch available GHSA-35j2-p8fh-x966
Remediation
- Fix · CNA Elastic APM agent for Ruby (Elastic) Fixed in 2.9.0
- Fix · GHSA-35j2-p8fh-x966 elastic-apm (RubyGems) Fixed in 2.9.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-7615
- 2026-10-03 Alias added: GHSA-35j2-p8fh-x966
- 2026-10-21 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2019-7615 · CVE Program
- CVE-2019-7615 · NVD
- FIRST EPSS
- GHSA-35j2-p8fh-x966 · GitHub Advisory Database · CC BY 4.0
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