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Advisory record · GHSA-gw2m-mj6q-59hc

openssl_encrypt versions before 1.4.9 contain a shell injection vulnerability in the info command's reconstructed CLI block that interpolates untrusted metadata fields without quoting. Attackers ca...

CVSS 9.3 CriticalCriticalEPSS 0.0043 · 37th percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 27 Aug 2026, 17:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
openssl-encryptPyPI<1.4.91.4.9
Identifiers
GHSA-gw2m-mj6q-59hc · CVE-2026-81698 · PYSEC-2026-3776
Weakness (CWE)
CWE-78
Tags
Published
27 Aug 2026
Updated
2 Sept 2026

Machine-written summary

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

openssl-encrypt versions before 1.4.9 have a shell injection flaw in the info command's reconstructed CLI block, which inserts metadata fields into the output without quoting them. An attacker can craft metadata, such as a pepper_name value containing shell commands, that runs when a user copies the printed block into a shell. Upgrade to openssl-encrypt 1.4.9 or later, which contains the fix.

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 0.0043, the 37th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:38 UTC First seen by agentprime
  2. 31 Oct 2026, 14:38 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.