CVE-2026-74901Critical· 9.8▾ Midnightopenssl_encrypt versions before 1.4.0 contain an authentication bypass vulnerability in pqc.py where AES-GCM decryption failures trigger fallback to unauthenticated AES-CTR mode. Attackers can modify ciphertext in transit to bypass integ…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
0.2% → 0.4%
Last analysed / modified upstream
— → 9.8
none → critical
openssl_encrypt versions before 1.4.0 contain an authentication bypass vulnerability in pqc.py where AES-GCM decryption failures trigger fallback to unauthenticated AES-CTR mode. Attackers can modify ciphertext in transit to bypass integrity verification and perform bit-flipping attacks without detection.
openssl_encrypt < 1.4.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
openssl-encrypt < 1.4.0Patched in:
openssl-encrypt 1.4.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-81680Medium· 4.0openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal
CVE-2026-81717Low· 3.5openssl_encrypt before 1.4.9 Integrity Bypass via Added Files
CVE-2026-81714High· 7.0openssl_encrypt before 1.4.9 Plugin Signing Trust Anchor Enrollment Bypass
CVE-2026-81701Critical· 9.8openssl_encrypt before 1.4.9 Arbitrary Code Execution via unsigned plugin
CVE-2026-81700Critical· 9.8openssl_encrypt before 1.4.9 GPG Signature Verification Bypass
CVE-2026-74876Critical· 9.8openssl_encrypt versions before 1.4.0 contain a vulnerability in PublicKeyBundle.from_dict() that creates key bundles from untrusted data without verifying signatures