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.
CVE-2026-32640
“—” beside the score: it is equal to NVD's CVSS score.
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.9% (58th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALmedium confidence
- EG Risk
- 59EG Risk 59/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.9% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.9%
- EPSS %ILE
- 58th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 0.9% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-21). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
March 16, 2026
Last Modified
July 15, 2026
Advisory Details (7)
Auto-updated Oct 18, 20262447529 – (CVE-2026-32640) CVE-2026-32640 simpleeval: SimpleEval: Arbitrary code execution via sandbox escape due to improper object handling
https://bugzilla.redhat.com/show_bug.cgi?id=2447529CVE-2026-32640 - Red Hat Customer Portal
Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a
https://access.redhat.com/security/cve/CVE-2026-32640[SECURITY] [DLA 4543-1] simpleeval security update
https://lists.debian.org/debian-lts-announce/2026/04/msg00023.html(SimpleEval) Objects (including modules) can leak dangerous modules through to direct access inside the sandbox. · Advisory · danthedeckie/simpleeval · GitHub
https://github.com/danthedeckie/simpleeval/security/advisories/GHSA-44vg-5wv2-h2hgVendor Advisories for CVE-2026-32640(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:37275Red Hat Product SecurityCritical
Red Hat Security Advisory: RHOAI 3.3.5 - Red Hat OpenShift AI
- RHSA-2026:10184Red Hat Product SecurityHigh
Red Hat Security Advisory: RHOAI 2.25.5 - Red Hat OpenShift AI
- GHSA-44vg-5wv2-h2hgGitHub Security AdvisoriesHigh
SimpleEval: Objects (including modules) can leak dangerous modules through to direct access inside the sandbox
Patch Availability(3)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3-simpleeval (0.8.7-1ubuntu0.1~esm1) @ xenial | 2026-10-21 | ubuntu |
| redhat | rhoai/odh-trustyai-nemo-guardrails-server-rhel9:1782471606 | 2026-07-09 | redhat |
| redhat | rhoai/odh-training-rocm62-torch25-py311-rhel9:1776272253 | 2026-04-23 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| simpleeval | 0.9.10-1 |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| simpleeval | 0.9.12-1 |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| simpleeval | 1.0.3-1 |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| simpleeval | 1.0.3-1 |
| — |
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| simpleeval | 0.8.1 ... 1.0.4 (23 versions) |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 21× in last 7d / 48× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 96 of 290 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 194 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-21 17:47 UTCEG score recompute
- 2026-10-21 17:47 UTCVendor advisory
- 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.9% · 58th percentile
- 2026-10-20 15:58 UTCEG score recompute
- 2026-10-20 15:58 UTCVendor advisory
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.9% · 58th percentile
- 2026-10-19 14:05 UTCEG score recompute
- 2026-10-19 14:05 UTCVendor advisory
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-18 12:12 UTCVendor advisory
- 2026-10-18 03:47 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-17 10:22 UTCEG score recompute
- 2026-10-17 10:22 UTCVendor advisory
- 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-16 08:32 UTCEG score recompute
- 2026-10-16 08:32 UTCVendor advisory
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-15 06:41 UTCEG score recompute
- 2026-10-15 06:41 UTCVendor advisory
- 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-14 02:21 UTCEG score recompute
- 2026-10-14 02:21 UTCVendor advisory
- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
Show 71 moreShow fewer
- 2026-10-12 22:38 UTCEG score recompute
- 2026-10-12 22:38 UTCVendor advisory
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-12 16:14 UTCEG score recompute
- 2026-10-12 08:30 UTCVendor advisory
- 2026-10-11 19:56 UTCEG score recompute
- 2026-10-11 17:09 UTCEG score recompute
- 2026-10-11 14:37 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-11 10:14 UTCOSV refresh
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.8% · 54th percentile
- 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
- 2026-09-21 22:16 UTCOSV refresh
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-02 18:38 UTCOSV refresh
- 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-16 11:27 UTCEG score recompute
- 2026-08-16 11:27 UTCVendor advisory
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-08-14 23:59 UTCVendor advisory
- 2026-08-14 20:01 UTCVendor advisory
- 2026-08-14 15:32 UTCVendor advisory
- 2026-08-14 11:32 UTCVendor advisory
- 2026-08-14 07:33 UTCEG score recompute
- 2026-08-14 07:33 UTCVendor advisory
- 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-08-13 02:24 UTCVendor advisory
- 2026-08-12 22:26 UTCEG score recompute
- 2026-08-12 22:26 UTCVendor advisory
- 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-08-12 01:35 UTCVendor advisory
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat:RHSA-2026:10184 · redhat:RHSA-2026:37275
Frequently asked(5)
What is CVE-2026-32640?
When was the CVE record for CVE-2026-32640 published?
Is CVE-2026-32640 actively exploited?
What is the CVSS score of CVE-2026-32640?
How do I remediate CVE-2026-32640?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-32640
Is Your Infrastructure Affected by CVE-2026-32640?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.