XML external entity injection in Exadel Flamingo amf-serializer
Priority MEDIUM 48CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
The Java implementation of AMF3 deserializers used by Flamingo amf-serializer by Exadel, version 2.2.0, allows external entity references (XXEs) from XML documents embedded within AMF3 messages. If the XML parsing is handled incorrectly it could potentially expose sensitive data on the server, denial of service, or server side request forgery.
Why it matters now
EPSS 0.03617 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-3206
- 2026-10-03 Alias added: GHSA-685x-q7j3-8c52
References
More Exadel Flamingo vulnerabilities
- TI-2017-02407 Deserialization of untrusted data in Exadel Flamingo amf-serializer CVSS 3.0CRITICAL 9.8
Sources
- CVE-2017-3206 · CVE Program
- CVE-2017-3206 · NVD
- FIRST EPSS
- GHSA-685x-q7j3-8c52 · GitHub Advisory Database · CC BY 4.0
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