Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jahlives | Openssl Encrypt | < 1.4.9 |
Related Weaknesses (CWE)
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-783h-8q2f-fVendor Advisory
- https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-denial-of-servThird Party Advisory
FAQ
What is CVE-2026-81720?
CVE-2026-81720 is a vulnerability with a CVSS score of 6.2 (MEDIUM). 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 w...
How severe is CVE-2026-81720?
CVE-2026-81720 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-81720?
Check the references section above for vendor advisories and patch information. Affected products include: Jahlives Openssl Encrypt.