How severe is CVE-2026-32640?

CVE-2026-32640 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-32640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32640?

CVE-2026-32640 affects Danthedeckie Simpleeval. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32640?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-32640 have an EU (EUVD) identifier?

Yes. CVE-2026-32640 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12142.

When was CVE-2026-32640 published?

CVE-2026-32640 was published on 2026-03-16 and last updated on 2026-06-30.

CVE-2026-32640

CVE-2026-32640 is a critical-severity vulnerability in Danthedeckie Simpleeval with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 8.7
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12142
Weakness: CWE-94
Affected product: Danthedeckie Simpleeval
Published: 2026-03-16
Last modified: 2026-06-30

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.

Frequently asked questions

What is CVE-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 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.
How severe is CVE-2026-32640?: CVE-2026-32640 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-32640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32640?: CVE-2026-32640 affects Danthedeckie Simpleeval. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32640?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-32640 have an EU (EUVD) identifier?: Yes. CVE-2026-32640 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12142.
When was CVE-2026-32640 published?: CVE-2026-32640 was published on 2026-03-16 and last updated on 2026-06-30.

References

Affected products (1)

cpe:2.3:a:danthedeckie:simpleeval:*:*:*:*:*:python:*:*

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