SEPTEMBER 18, 2026
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Case File

CVE-2026-81692

HIGH · CVSS 7.5 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-27 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

OpenSSL versions 1.4.8 and earlier are vulnerable due to improper validation of the STREAMINFO total_samples field in FLAC files, which can lead to excessive memory allocation when processing crafted files. This vulnerability can result in a denial of service by exhausting system memory during decryption operations. Organizations using affected versions should prioritize upgrading to 1.4.9 or later to mitigate this high-severity risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-81692
Severity
HIGH
CVSS
7.5
EPSS
0.34%
OpenSSL

Original NVD 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.