Logging Bug and Race Condition in OpenSSL Encrypt by GitHub
CVE-2026-74885

9.3CRITICAL

Key Information:

Vendor

Jahlives

Status
OpenSSL Encrypt
Vendor
CVE Published:
17 August 2026

What is CVE-2026-74885?

The OpenSSL Encrypt library, particularly versions prior to 1.4.0, is affected by a significant logging bug in the restore_hidden_modules() function. This bug results in incorrect logging of module counts, which demonstrates zero restored modules even after clearing, leading to corrupted audit trails. Additionally, a race condition exists during the interplay between module hiding and import hook installation, allowing another thread to potentially re-import modules that have been blocked. These issues could lead to severe security repercussions, especially in environments that utilize multi-threading.

Affected Version(s)

openssl_encrypt 0 < 1.4.0

openssl_encrypt 1.4.0

References

https://github.com/jahlives/openssl_encrypt/security/advi...
vendor-advisory
https://www.vulncheck.com/advisories/openssl-encrypt-befo...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.