CVE-2026-74874 openssl_encrypt before 1.4.0 Weak PRNG Steganography Pixel Selection

What is CVE-2026-74874?

CVE-2026-74874 is a high-severity vulnerability in Jahlives Openssl Encrypt, published on 17 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

openssl_encrypt versions before 1.4.0 use Python's non-cryptographic random module for steganographic pixel selection in the generate_pseudorandom_sequence function. Attackers who know the password can recover the Mersenne Twister state from approximately 624 outputs and predict pixel locations containing hidden data for extraction.

Weakness: CWE-338

Which versions are affected by CVE-2026-74874?

3 open source packages ship an affected version, including openssl-encrypt. It affects 1 product.

Products include Jahlives Openssl Encrypt.

How do I fix CVE-2026-74874?

Upgrade openssl-encrypt to 1.4.0 or later.

Is CVE-2026-74874 being exploited?

There is no known exploitation of CVE-2026-74874 in the wild and no public exploit code.

Other vulnerabilities in Jahlives Openssl Encrypt

• CVE-2026-81680 openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal Critical 9.3
• CVE-2026-81681 openssl_encrypt before 1.4.9 False Encryption via Cleartext Storage Critical 9.3
• CVE-2026-81685 openssl_encrypt before 1.4.9 Text Injection via Recovery Slot Metadata Critical 9.3
• CVE-2026-81694 openssl-encrypt before 1.4.9 Output Injection via Unsanitized Filenames in verify-usb Command Critical 9.3
• CVE-2026-81695 openssl_encrypt before 1.4.9 Terminal Injection via key_id Critical 9.3

All Jahlives Openssl Encrypt vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• GitHub advisory
• How this page is made

Also known as GHSA-844w-mwfp-wjwf, GHSA-vfgx-5q85-58q3, PYSEC-2026-3754.