java-zip-slip-mining
Read-only mining codemod for SonarSource rule javasecurity:S6096 — Extracting archives should not lead to zip slip vulnerabilities.
It scans Java source and emits metrics only; it never modifies code (return null).
Findings are high-signal review candidates surfaced by AST pattern matching — they are
not proven vulnerabilities. A static mining pass cannot prove an end-to-end taint flow
from an untrusted source to the sink, so confirm data flow before remediating.
| Field | Value |
|---|---|
| Rule key | javasecurity:S6096 |
| Type | Vulnerability |
| Severity | Blocker |
| Primary CWE | CWE-22 (Path Traversal) |
| Tags | cwe |
What it detects
Archive extraction code that builds filesystem paths directly from archive entry names.
Sinks:
new File(..., entry.getName())(andFileInputStream/FileOutputStream/RandomAccessFile/FileWriter)Paths.get(... entry.getName())/path.resolve(... entry.getName())
Emission rule: Emits when a path-construction sink contains a getName() call on an archive-entry-like receiver (entry/ze/zip/tar/archive).
Metric: java-zip-slip-mining
| dimension | meaning |
|---|---|
rule | SonarSource rule key |
cwe | primary CWE identifier |
severity | always blocker |
sink | the detected sink (method/constructor) |
package_name | enclosing Java package |
class_name | enclosing class/interface/enum/record |
method_name | enclosing method/constructor (or <none>) |
file | file path (relative to scan target) |
line | 1-based line of the finding |
arg_kind | always archive_entry |
Security standards
- CWE-20 (Improper Input Validation)
- CWE-22 (Path Traversal)
- OWASP ASVS 4.0: 5.1.3, 5.1.4, 12.3.4
- OWASP Mobile Top 10 2024: M4
- OWASP Top 10 2021: A1, A3
- OWASP Top 10: A1, A5
- PCI DSS 3.2: 6.5.1, 6.5.8
- PCI DSS 4.0: 6.2.4
- STIG ASD V5R3: V-222609
Run locally
Part of the java-security-blocker-mining suite covering 19 blocker-severity
Java vulnerability rules. Each codemod is read-only and emits a single named metric.