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CVE-2025-27508GHSA-HW43-FCMM-3M5G

Emissary Use of a Broken or Risky Cryptographic Algorithm

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 8.24.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: partial

Summary

Emissary is a P2P based data-driven workflow engine. The ChecksumCalculator class within allows for hashing and checksum generation, but it includes or defaults to algorithms that are no longer recommended for secure cryptographic use cases (e.g., SHA-1, CRC32, and SSDEEP). These algorithms, while possibly valid for certain non-security-critical tasks, can expose users to security risks if used in scenarios where strong cryptographic guarantees are required. This issue is fixed in 8.24.0.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • NationalSecurityAgency emissary

    fixed in 8.24.0

  • gov.nsa.emissary:emissaryMaven

    fixed in 8.24.0

References 2

GitHub · NationalSecurityAgency/emissary