CVE-2026-81692
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| jahlives | openssl_encrypt | 0 < 1.4.9 | affected |
| jahlives | openssl_encrypt | 1.4.9 | unaffected |
Weaknesses
- CWE-789: Memory Allocation with Excessive Size Value
References
- https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-wr9q-p3rj-vqq7
- https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-denial-of-service-via-streaminfo
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