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Fencer Vulns
high 7.5

CVE-2026-32640 json

(SimpleEval) Objects (including modules) can leak dangerous modules through to direct access inside the sandbox.

published 2026-03-13 7 mo ago modified 2026-07-15 3 mo ago also GHSA-44vg-5wv2-h2hg , PYSEC-2026-132 , EUVD-2026-12142

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi simpleeval 1.0.5
  • Red Hat Red Hat OpenShift AI 2.25 1776243258, 1776243287, 1776272253, 1776272258
  • Red Hat Red Hat OpenShift AI 3.3 1782471606
  • simpleeval Debian 12 0.9.12-1+deb12u1
  • simpleeval Debian 13 1.0.3-1+deb13u1
  • simpleeval Debian 14 1.0.7-1

debian advisories DEBIAN-CVE-2026-32640

  • simpleeval Ubuntu 24.04 LTS 0.9.12-1+deb12u1build0.24.04.1
  • simpleeval Ubuntu 25.10 1.0.3-1+deb13u1build0.25.10.1
  • simpleeval Ubuntu 26.04 LTS 1.0.3-1+deb13u1build0.26.04.1
  • simpleeval Ubuntu Pro 16.04 LTS 0.8.7-1ubuntu0.1~esm1
  • simpleeval Ubuntu Pro 18.04 LTS 0.9.5-1ubuntu0.1~esm1
  • simpleeval Ubuntu Pro 20.04 LTS 0.9.10-1+deb11u1build0.20.04.1
  • simpleeval Ubuntu Pro 22.04 LTS 0.9.11-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2026-32640

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-simpleeval openSUSE Leap 16.0 0.9.13-bp160.2.1
  • python-simpleeval openSUSE Tumbleweed 1.0.5-1.1

opensuse advisories openSUSE-SU-2026:20393-1openSUSE-SU-2026:10373-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-32640 updated cvss 7.5

simpleeval: SimpleEval: Arbitrary code execution via sandbox escape due to improper object handling

  • Red Hat OpenShift AI (RHOAI) rhoai/odh-training-rocm64-torch28-py312-rhel9, rhoai/odh-training-rocm64-torch29-py312-rhel9, rhoai/odh-training-cuda128-torch28-py312-rhel9, rhoai/odh-training-cuda128-torch29-py312-rhel9
    affected: no fix available
  • Red Hat OpenShift AI 2.25 rhoai 1776243258, rhoai 1776243287, rhoai 1776272253, rhoai 1776272258
    fixed: vendor fix RHSA-2026:10184
  • Red Hat OpenShift AI 3.3 rhoai/odh-trustyai-nemo-guardrails-server-rhel9 1782471606
    fixed: vendor fix RHSA-2026:37275
  • Red Hat OpenShift AI 2.25 rhoai 1775144403, rhoai 1776243157, rhoai 1776243163, rhoai 1776243192, rhoai 1776243217, rhoai 1776243229, +67 more Red Hat OpenShift AI 3.3 rhoai/odh-cli-rhel9 1782471642, rhoai/rhai-cli-rhel9 1782471642, rhoai/odh-mlflow-rhel9 1782917849, rhoai/odh-trainer-rhel9 1782471656, rhoai/odh-maas-api-rhel9 1782996644, rhoai/odh-mlserver-rhel9 1782887848, +76 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
7 mo ago

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 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
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA 4.0 8.7 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:X/V:X/RE:X/U:X
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi simpleeval
<1.0.5
1.0.5

Affected products

  • danthedeckie simpleeval
  • Red Hat Red Hat OpenShift AI 2.25
  • Red Hat Red Hat OpenShift AI 3.3
  • Red Hat Red Hat OpenShift AI (RHOAI)

Classification

Weakness
  • CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.