PickleScan Security Bypass via Bad CRC in ZIP Archive
Published Sep 17, 2025
9.3
CRITICALCVSS 4.0
EPSS 1.48%
Description
An Improper Handling of Exceptional Conditions vulnerability in the ZIP archive scanning component of mmaitre314 picklescan allows a remote attacker to bypass security scans. This is achieved by crafting a ZIP archive containing a file with a bad Cyclic Redundancy Check (CRC), which causes the scanner to halt and fail to analyze the contents for malicious pickle files. When the file incorrectly considered safe is loaded, it can lead to the execution of malicious code.
Affected products
-
- Version 0StatusaffectedConstraints<=0.0.30
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mmaitre314 | Picklescan | unaffected |
|
- < 0.0.31
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:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (GHSA) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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
PartialDecision
n/aAssessed Sep 17, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (4 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.48% (0.01481) | 73.05th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.43% (0.01428) | 69.42th | v5 (v2026.06.15) |
| Jun 3, 2026 | 1.28% (0.01284) | 79.94th | v4 (v2025.03.14) |
| Sep 17, 2025 | 0.18% (0.00180) | 39.96th | v4 (v2025.03.14) |
References (8)
- https://github.com/advisories/GHSA-mjqp-26hc-grxg Advisory
- https://github.com/mmaitre314/picklescan/blob/v0.0.29/src/picklescan/relaxed_zipfile.py#L35 relatedProduct
- https://github.com/mmaitre314/picklescan/commit/28a7b4ef753466572bda3313737116eeb9b4e5c5
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-mjqp-26hc-grxg vendor-advisoryExploitVendor Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/picklescan/PYSEC-2025-152.yaml
- https://huggingface.co/jinaai/jina-embeddings-v2-base-en/resolve/main/pytorch_model.bin?download=true exploitNot Applicable
- https://huggingface.co/jinaai/jina-embeddings-v2-base-en/tree/main exploitNot Applicable
- https://nvd.nist.gov/vuln/detail/CVE-2025-10156
Change history (0)
No recorded changes yet.