======================= Announcing PyYAML-5.3.1 ======================= A new release of PyYAML is now available: https://pypi.org/project/PyYAML/ This release contains a security fix for CVE-2020-1747. FullLoader was still exploitable for arbitrary command execution. https://bugzilla.redhat.com/show_bug.cgi?id=1807367 Thanks to Riccardo Schirone (https://github.com/ret2libc) for both reporting this and providing the fixes to resolve it. Changes ======= * https://github.com/yaml/pyyaml/pull/386 -- Prevents arbitrary code execution during python/object/new constructor Resources ========= PyYAML IRC Channel: #pyyaml on irc.freenode.net PyYAML homepage: https://github.com/yaml/pyyaml PyYAML documentation: http://pyyaml.org/wiki/PyYAMLDocumentation Source and binary installers: https://pypi.org/project/PyYAML/ GitHub repository: https://github.com/yaml/pyyaml/ Bug tracking: https://github.com/yaml/pyyaml/issues YAML homepage: http://yaml.org/ YAML-core mailing list: http://lists.sourceforge.net/lists/listinfo/yaml-core About PyYAML ============ YAML is a data serialization format designed for human readability and interaction with scripting languages. PyYAML is a YAML parser and emitter for Python. PyYAML features a complete YAML 1.1 parser, Unicode support, pickle support, capable extension API, and sensible error messages. PyYAML supports standard YAML tags and provides Python-specific tags that allow to represent an arbitrary Python object. PyYAML is applicable for a broad range of tasks from complex configuration files to object serialization and persistence. Example =======

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import yaml

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yaml.full_load(""" ... name: PyYAML ... description: YAML parser and emitter for Python ... homepage: https://github.com/yaml/pyyaml ... keywords: [YAML, serialization, configuration, persistence, pickle] ... """) {'keywords': ['YAML', 'serialization', 'configuration', 'persistence', 'pickle'], 'homepage': 'https://github.com/yaml/pyyaml', 'description': 'YAML parser and emitter for Python', 'name': 'PyYAML'}

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print(yaml.dump(_)) name: PyYAML homepage: https://github.com/yaml/pyyaml description: YAML parser and emitter for Python keywords: [YAML, serialization, configuration, persistence, pickle]

Maintainers =========== The following people are currently responsible for maintaining PyYAML: * Tina Mueller * Ingy döt Net * Matt Davis and many thanks to all who have contribributed! See: https://github.com/yaml/pyyaml/pulls Copyright ========= Copyright (c) 2017-2020 Ingy döt Net <ingy@ingy.net> Copyright (c) 2006-2016 Kirill Simonov <xi@resolvent.net> The PyYAML module was written by Kirill Simonov <xi@resolvent.net>. It is currently maintained by the YAML and Python communities. PyYAML is released under the MIT license. See the file LICENSE for more details.