Python Markdown2

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cpe:2.3:a:python-markdown2_project:python-markdown2:*:*:*:*:*:*:*:*

part: a version: * update: *

VendorPython Markdown2 Project (23ca16f6-81a1-5f47-a43f-f4dd2d71ee5b)
ProductPython Markdown2 (326b0cca-2cba-57d2-bfb3-b77c7bc93765)
Edition*
Language*
Software edition*
Target software*
Target hardware*
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Notes

Imported from purl2cpe mapping

PURL mappings

PURLSourceLast updated
pkg:deb/debian/python-markdown2 purl2cpe 2026-06-01 10:17:10.842063
pkg:deb/ubuntu/python-markdown2 purl2cpe 2026-06-01 10:17:10.842065
pkg:github/python-markdown/markdown purl2cpe 2026-06-01 10:17:10.842066
pkg:github/trentm/python-markdown2 purl2cpe 2026-06-01 10:17:10.842068
pkg:rpm/fedora/python-markdown2 purl2cpe 2026-06-01 10:17:10.842069
pkg:rpm/opensuse/python-markdown2 purl2cpe 2026-06-01 10:17:10.842071

Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2019-25781 vulnerable 2026-11-03 10:25:11.256856 Python-Markdown 3.0 through 3.11.2 Denial of Service via Link Bracket Parsing
HIGH (7.5)
Python-Markdown 3.0 through 3.11.2 contains an algorithmic complexity vulnerability in inline link parsing that allows remote attackers to exhaust CPU through unmatched brackets. Attackers can submit short Markdown containing repeated [ or ![ characters, forcing LinkInlineProcessor.getText() and getLink() into quadratic scans that keep workers busy for minutes.
Published: 2026-10-29T13:08:49.597Z
Updated: 2026-11-03T15:29:33.399Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2026-118694 vulnerable 2026-11-03 10:17:04.568484 python-markdown2 through 2.5.5 Denial of Service via Unclosed Inline Link Destinations
HIGH (7.5)
python-markdown2 through 2.5.5 contains a denial of service vulnerability that allows remote users to exhaust CPU by submitting Markdown with unclosed inline link destinations. Attackers can submit repeated '[a](' or '![a](' sequences, causing _find_balanced to rescan the remaining document for each link and consume quadratic CPU time.
Published: 2026-10-28T21:11:20.814Z
Updated: 2026-10-29T17:22:18.429Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2020-11888 vulnerable 2026-06-08 05:17:55.195375 Details available
python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.
Published: 2020-04-20T15:48:13.000Z
Updated: 2024-08-04T11:42:00.730Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2018-5773 vulnerable 2026-06-08 05:11:51.926176 Details available
An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final '>' character from an IMG tag.
Published: 2018-01-18T21:00:00.000Z
Updated: 2024-09-16T17:47:46.652Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2009-3724 vulnerable 2026-06-08 04:51:43.833086 Details available
python-markdown2 before 1.0.1.14 has multiple cross-site scripting (XSS) issues.
Published: 2020-01-15T20:02:54.000Z
Updated: 2024-08-07T06:38:30.237Z
Reference links
Imported from gcve-enriched-dumps CVE data

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