CVE-2026-74876

Summary

openssl_encrypt versions before 1.4.0 contain a vulnerability in PublicKeyBundle.from_dict() that creates key bundles from untrusted data without verifying signatures. Attackers can call from_dict() followed by to_identity() without signature verification to encrypt data using attacker-controlled public keys, leaking secrets.

Affected Software

Weaknesses

• CWE-347: Improper Verification of Cryptographic Signature

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: total

References

• https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-8h88-gxp3-j7pg
• https://www.vulncheck.com/advisories/openssl-encrypt-before-unverified-key-bundle-encryption

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