CVE-2026-81720

Summary

openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive memory_cost values that cause the host to crash when unlocking identities before authentication.

Affected Software

Weaknesses

• CWE-400: Uncontrolled Resource Consumption

References

• https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-783h-8q2f-f762
• https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-denial-of-service-via-unbounded-argon2

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