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CVE record · CVE-2021-3426

Information disclosure in python

CVSS 5.7 MediumEPSS 0.019 · 79th percentile

Published by the CVE Program (CNA: redhat) at 20 May 2021, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Not given python
  • affected python 3.8.9, python 3.9.3, python 3.10.0a7
Identifiers
CVE-2021-3426
CNA
redhat
Weakness (CWE)
CWE-200
Tags
Published
20 May 2021
Updated
14 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.7 Medium 3.1 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.019, the 79th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 20 May 2021. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.