picklescan - Arbitrary Code Execution via Obfuscated eval Call
Priority HIGH 81CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
picklescan before 1.0.1 contains an unsafe deserialization vulnerability allowing unauthenticated users to execute arbitrary code by hiding eval calls nested under callable objects via getattr. Attackers can embed malicious code in pickle files that evades detection but executes when the pickle is loaded from untrusted sources.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00519 44th percentileScored 2026-11-07
Fix Fixed picklescan (picklescan): 1.0.1picklescan (PyPI): 1.0.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| picklescan | picklescan | before 1.0.1 | 1.0.1 | Patch available | CNA |
| — | picklescan (PyPI) | before 1.0.1 | 1.0.1 | Patch available | GHSA-9m3x-qqw2-h32h |
- picklescan Vendorpicklescan Affected before 1.0.1 Fixed in 1.0.1 Patch available CNA
- picklescan (PyPI) Vendor— Affected before 1.0.1 Fixed in 1.0.1 Patch available GHSA-9m3x-qqw2-h32h
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:* | — | — | picklescan |
- cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:* Versions — — ·picklescan
Remediation
- Fix · CNA picklescan (picklescan) Fixed in 1.0.1
- Fix · GHSA-9m3x-qqw2-h32h picklescan (PyPI) Fixed in 1.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53874
- 2026-10-03 Alias added: GHSA-9m3x-qqw2-h32h
- 2026-10-25 EPSS moved to the below the 50th percentile
References
Advisory 2
More picklescan vulnerabilities
- TI-2026-03009 picklescan - Universal Blocklist Bypass via pkgutil.resolve_name CVSS 4.0CRITICAL 10.0
- TI-2026-40680 picklescan - Remote Code Execution via Unblocked Standard Library Modules CVSS 4.0CRITICAL 9.3
- TI-2026-38869 picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass CVSS 4.0CRITICAL 9.3
- TI-2025-43446 picklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw CVSS 4.0CRITICAL 9.3
- TI-2025-43444 picklescan - Remote Code Execution via Unblocked ctypes Module CVSS 4.0CRITICAL 9.3
- TI-2025-43442 picklescan - Arbitrary File Writing via distutils Module Bypass CVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-53874 · CVE Program
- CVE-2026-53874 · NVD
- FIRST EPSS
- GHSA-9m3x-qqw2-h32h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences