Dabeaz develops PLY (Python Lex-Yacc), a lexer and parser library widely used in Python projects for language processing and domain-specific language implementation. The observed vulnerability signal centers on deserialization of untrusted data, a weakness class that reflects the parsing and code-generation role this library plays. Current severity, exploitation activity, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Dabeaz over time
Signals from CVEs in this vendor scope (1 CVEs).
1 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2025-56005CRITICAL An undocumented and unsafe feature in the PLY (Python Lex-Yacc) library 3.11 allows Remote Code Execution (RCE) via the `picklefile` parameter in the `yacc()` function. This parame | Jan 20, 2026 | 9.8 | 47 | NO | NO |
Signals from CVEs in this vendor scope (1 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Dabeaz.
Media articles that mention a CVE ID that affects a product developed by Dabeaz — matched by CVE ID, not by vendor name.