CVE-2025-27508: high-severity vulnerability in NationalSecurityAgency emissary
Emissary Use of a Broken or Risky Cryptographic Algorithm
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
NationalSecurityAgency · emissaryRelated CVEs — NationalSecurityAgency emissary
In the same product, most dangerous first.
CVE-2021-32647HIGHPost-authentication Remote Code Execution (RCE) in emissary:emissaryEPSS 2.9%CVE-2021-32639HIGHServer-Side Request Forgery (SSRF) in emissary:emissaryEPSS 1.4%CVE-2021-32634HIGHDeserialization of Untrusted Data in EmissaryEPSS 1.3%CVE-2026-35582HIGHEmissary has an OS Command Injection via Unvalidated IN_FILE_ENDING / OUT_FILE_ENDING in ExecutrixEPSS 0.9%CVE-2026-35581HIGHEmissary has a Command Injection via PLACE_NAME Configuration in ExecutrixEPSS 0.6%CVE-2026-35580CRITICALEmissary has GitHub Actions Shell Injection via Workflow InputsEPSS 0.6%