PySpector has a Plugin Code Execution Bypass via Incomplete Static Analysis in PluginSecurity.validate_plugin_code
Published Apr 23, 2026
6.9
MEDIUMCVSS 4.0
EPSS 0.19%
Description
PySpector is a static analysis security testing (SAST) Framework engineered for modern Python development workflows. The plugin security validator in PySpector uses AST-based static analysis to prevent dangerous code from being loaded as plugins. Prior to version 0.1.8, the blocklist implemented in `PluginSecurity.validate_plugin_code` is incomplete and can be bypassed using several Python constructs that are not checked. An attacker who can supply a plugin file can achieve arbitrary code execution within the PySpector process when that plugin is installed and executed. Version 0.1.8 fixes the issue.
Affected products
-
- Version < 0.1.8StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ParzivalHack | PySpector | n/a |
|
- < 0.1.8
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:L/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
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Apr 23, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Apr–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.19% (0.00191) | 7.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.18% (0.00184) | 8.14th | v5 (v2026.06.15) |
| Apr 23, 2026 | 0.02% (0.00023) | 6.24th | v4 (v2025.03.14) |
References (5)
- https://github.com/ParzivalHack/PySpector/commit/3c9547157fc07396f22b26b3484a9a91eba98555 x_refsource_MISCPatch
- https://github.com/ParzivalHack/PySpector/commit/4e279e078c53d760fd321ff9b698d683c65ccb8e x_refsource_MISCPatch
- https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-vp22-38m5-r39r exploitx_refsource_CONFIRMVendor Advisory
- https://github.com/advisories/GHSA-vp22-38m5-r39r Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-41206
| Link | Providers | Tags |
|---|---|---|
| https://github.com/ParzivalHack/PySpector/commit/3c9547157fc07396f22b26b3484a9a91eba98555 | x_refsource_MISCPatch | |
| https://github.com/ParzivalHack/PySpector/commit/4e279e078c53d760fd321ff9b698d683c65ccb8e | x_refsource_MISCPatch | |
| https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-vp22-38m5-r39r | exploitx_refsource_CONFIRMVendor Advisory | |
| https://github.com/advisories/GHSA-vp22-38m5-r39r | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-41206 |
Change history (0)
No recorded changes yet.