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Vulnerabilities

Vulnerability · CVE-2026-32640

SimpleEval is a library for adding evaluatable expressions into python projects.

Published Mar 16, 2026 · catalog updated Jul 15, 2026 · SimpleEval is a library

Check if you run it

No confirmed exploitation is on record for CVE-2026-32640. EPSS is 0.87%. Act only if a listed version of SimpleEval is a library is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (SimpleEval is a library).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.87%
Remediation
Advisory link
Affected products
cpe danthedeckie/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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe danthedeckie/simpleevalversion unspecified

How to fix CVE-2026-32640

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-32640. EPSS is 0.87%. Act only if a listed version of SimpleEval is a library is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes; CWE-94: Code Injection. EPSS 0.87%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 16, 2026 · NIST NVD

    Detected

    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 t

  2. Jul 15, 2026 · NIST NVD

    Updated

    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 t

Sources

  • CVE.orgVulnerability recordCVE-2026-32640

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-32640

    30-day exploitation probability 0.9%

    first.org
  • NIST NVDVulnerability recordCVE-2026-32640

    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 disall

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.