Vulnerability Description
openssl_encrypt (pip: openssl-encrypt) versions 1.4.8 and earlier fail to validate the 36-bit STREAMINFO total_samples field of FLAC files before using it to size an allocation (np.random.randint(size=(total_samples, channels))). A ~50-byte crafted FLAC file declaring ~100 million samples causes a multi-gigabyte memory allocation, leading to out-of-memory denial of service during 'decrypt --stego-extract'. The issue is fixed in 1.4.9; both the 1.4.x and 1.5.x lines are affected.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-wr9q-p3rj-v
- https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-denial-of-serv
FAQ
What is CVE-2026-81692?
CVE-2026-81692 is a vulnerability with a CVSS score of 7.5 (HIGH). openssl_encrypt (pip: openssl-encrypt) versions 1.4.8 and earlier fail to validate the 36-bit STREAMINFO total_samples field of FLAC files before using it to size an allocation (np.random.randint(size...
How severe is CVE-2026-81692?
CVE-2026-81692 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-81692?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.