Answer in brief
CVE-2025-71321 records a Critical severity (CVSS 9.3) vulnerability in picklescan - Arbitrary File Writing via distutils Module Bypass. The current sources do not mark it as known exploited. The current feed maps picklescan/picklescan (generic), picklescan (pip). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps picklescan/picklescan (generic), picklescan (pip). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| picklescan/picklescangeneric | >=0 <0.0.33 | 0.0.33 |
| picklescanpip | <0.0.33 | 0.0.33 |
Published upstream
Jun 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
picklescan before 0.0.33 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.file_util.write_file. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code execution.
Quoted source text, attributed separately from HOL analysis.