What’s Vulnerable › Vulnerabilities

CVE-2019-17514

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-10-12 · updated 2026-06-17
• Weakness: CWE-682

Description

library/glob.html in the Python 2 and 3 documentation before 2016 has potentially misleading information about whether sorting occurs, as demonstrated by irreproducible cancer-research results. NOTE: the effects of this documentation cross application domains, and thus it is likely that security-relevant code elsewhere is affected. This issue is not a Python implementation bug, and there are no reports that NMR researchers were specifically relying on library/glob.html. In other words, because the older documentation stated "finds all the pathnames matching a specified pattern according to the rules used by the Unix shell," one might have incorrectly inferred that the sorting that occurs in a Unix shell also occurred for glob.glob. There is a workaround in newer versions of Willoughby nmr-data_compilation-p2.py and nmr-data_compilation-p3.py, which call sort() directly.

Affected products

• Python: 3.6.0, 3.7.0, 3.8.0

References

• https://bugs.python.org/issue33275
• https://github.com/bminor/bash/blob/ac50fbac377e32b98d2de396f016ea81e8ee9961/pathexp.c#L380
• https://github.com/bminor/bash/blob/ac50fbac377e32b98d2de396f016ea81e8ee9961/pathexp.c#L405
• https://pubs.acs.org/doi/full/10.1021/acs.orglett.9b03216
• https://pubs.acs.org/doi/suppl/10.1021/acs.orglett.9b03216/suppl_file/ol9b03216_si_002.zip
• https://security.netapp.com/advisory/ntap-20191107-0005/
• https://twitter.com/LucasCMoore/status/1181615421922824192
• https://twitter.com/chris_bloke/status/1181997278136958976
• https://usn.ubuntu.com/4428-1/
• https://web.archive.org/web/20150822013622/https://docs.python.org/3/library/glob.html
• https://web.archive.org/web/20150906020027/https://docs.python.org/2.7/library/glob.html
• https://web.archive.org/web/20160309211341/https://docs.python.org/3/library/glob.html

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