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CVE-2026-74872 — Vulnerability in openssl-encrypt — CVE Details

CRITICAL

Published August 17, 2026Updated September 1, 2026Source: osv

Summary

openssl_encrypt versions before 1.4.0 contain an arbitrary code execution vulnerability in the Whirlpool hash implementation that uses broad glob patterns to load .so modules without integrity verification. Attackers can place malicious .so files matching the whirlpool*py313*.so pattern in site-packages directories to achieve native code execution when the module is loaded.

Advisory Timeline

  • First published August 17, 2026 (56 days ago).
  • Last revised September 1, 2026 — 15 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update openssl-encrypt to 1.4.0 or later
pip install "openssl-encrypt>=1.4.0"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
openssl-encrypt
pypi
0.2.2, 0.2.3, 0.2.4, 0.2.5 (+40 more)1.4.0

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

References

Frequently Asked Questions

What is CVE-2026-74872?
This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2026-74872?
CVE-2026-74872 affects openssl-encrypt. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-74872 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

PYSEC-2026-3742
GHSA-j48q-4c78-rhf9

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