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Advisory record · GHSA-j48q-4c78-rhf9

openssl-encrypt: Dynamic .so loading for Whirlpool uses broad glob pattern without integrity verification

CVSS 9.3 CriticalCriticalEPSS 0.0068 · 52nd percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 31 Mar 2026, 23:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
openssl-encryptPyPI<1.4.01.4.0
Identifiers
GHSA-j48q-4c78-rhf9 · CVE-2026-74872 · PYSEC-2026-3742
Weakness (CWE)
CWE-426 · CWE-427
Tags
Published
31 Mar 2026
Updated
1 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Versions of openssl-encrypt before 1.4.0 are affected. The Whirlpool hash code loads the first `.so` file matching a broad glob pattern in site-packages without checking its integrity, so an attacker who can place a matching malicious file in a site-packages directory could get native code executed. The source gives few details on the exact conditions needed. Upgrade to openssl-encrypt 1.4.0 or later, which adds path validation before loading.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.3 Critical 4.0 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 CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0068, the 52nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:39 UTC First seen by agentprime
  2. 31 Oct 2026, 14:39 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.