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Vulnerability record · CVE-2026-32640 · published 16 March 2026

CVE-2026-32640: Danthedeckie simpleeval code injection vulnerability

DDanthedeckie · Simpleeval

SimpleEval is a library for adding evaluatable expressions into python projects. Prior to 1.0.5, objects (including modules) can leak dangerous modules through to direct access inside the sandbox. If the objects you've passed in as names to SimpleEval have modules or other disallowed / dangerous objects available as attrs. Additionally, dangerous functions or modules could be accessed by passing them as callbacks to other safe functions to call. The latest version 1.0.5 has this issue fixed. This vulnerability is fixed in 1.0.5.

8.7 CVSS 4.0 High EPSS 0.78% · top 46.0% CWE-94 · Code injectionCWE-915 · Mass assignment
8.7CVSS 4.0 base score
0.78%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
15 Jul 2026Last modified by NVD

Description

SimpleEval is a library for adding evaluatable expressions into python projects. Prior to 1.0.5, objects (including modules) can leak dangerous modules through to direct access inside the sandbox. If the objects you've passed in as names to SimpleEval have modules or other disallowed / dangerous objects available as attrs. Additionally, dangerous functions or modules could be accessed by passing them as callbacks to other safe functions to call. The latest version 1.0.5 has this issue fixed. This vulnerability is fixed in 1.0.5.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/danthedeckie/simpleeval/security/advisories/GHSA-44vg-5wv2-h2hg MitigationVendor Advisory
https://lists.debian.org/debian-lts-announce/2026/04/msg00023.html
https://access.redhat.com/errata/RHSA-2026:10184
https://access.redhat.com/errata/RHSA-2026:37275
https://access.redhat.com/security/cve/CVE-2026-32640
https://bugzilla.redhat.com/show_bug.cgi?id=2447529
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32640.json

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Source: NIST National Vulnerability Database (record CVE-2026-32640), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.