GHSA-2mj3-6grc-px38MediumCVSS 6.5

Filebeat Beats has Buffer Overflow via Malformed Syslog Message or Malicious Tokenizer Pattern in Dissect Configuration

Published
December 19, 2025
Last Modified
December 19, 2025

🔗 CVE IDs covered (1)

📋 Description

Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) in Filebeat Syslog parser and the Libbeat Dissect processor can allow a user to trigger a Buffer Overflow (CAPEC-100) and cause a denial of service (panic/crash) of the Filebeat process via either a malformed Syslog message or a malicious tokenizer pattern in the Dissect configuration.

🎯 Affected products5

  • go/github.com/elastic/beats/v7:>= 7.7.0, < 8.19.9
  • go/github.com/elastic/beats/v7:>= 9.0.0, < 9.1.9
  • go/github.com/elastic/beats/v7:>= 9.2.0, < 9.2.3
  • go/github.com/elastic/beats/v7:< 7.0.0-alpha2.0.20251204214633-dd3af18220bf
  • go/github.com/elastic/beats:<= 7.6.2

🔗 References (6)