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cpe:2.3:a:dabeaz:ply:3.11:*:*:*:*:*:*:*

part: a version: 3.11 update: *

VendorDabeaz (5e881145-428d-5af9-ae25-42be79c0def8)
ProductPly (318bd61e-a2e7-5a55-89dc-c92b43eb0b9e)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*

Notes

Imported from gcve-enriched-dumps CVE data

PURL mappings

PURLSourceLast updated
pkg:github/dabeaz/ply purl2cpe 2026-07-28 16:41:09.096998
pkg:pypi/ply purl2cpe 2026-07-28 16:41:09.097001

Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2025-56005 vulnerable 2026-06-08 07:33:15.414847 Details available
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 parameter accepts a `.pkl` file that is deserialized with `pickle.load()` without validation. Because `pickle` allows execution of embedded code via `__reduce__()`, an attacker can achieve code execution by passing a malicious pickle file. The parameter is not mentioned in official documentation or the GitHub repository, yet it is active in the PyPI version. This introduces a stealthy backdoor and persistence risk. NOTE: A third-party states that this vulnerability should be rejected because the proof of concept does not demonstrate arbitrary code execution and fails to complete successfully.
Published: 2026-01-20T00:00:00.000Z
Updated: 2026-09-17T12:04:32.797Z
Reference links
Imported from gcve-enriched-dumps CVE data

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