Known Vulnerabilities for Commonmark by Thephpleague

Listed below are 3 of the newest known vulnerabilities associated with "Commonmark" by "Thephpleague".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-86435 json commonmark versions from 1.5.0 before 2.8.4 contain a denial of service vulnerability in the Footnote extension that fails to... Not Provided 2026-09-07 2026-09-07
CVE-2026-86434 json league/commonmark versions >= 2.0.0 and < 2.8.4 (patched in 2.9.0) contain a denial of service vulnerability in UniqueSlugNor... Not Provided 2026-09-07 2026-09-07
CVE-2026-86433 json commonmark versions from 1.5.0 before 2.8.4 contain a denial of service vulnerability in the Attributes extension where Attri... Not Provided 2026-09-07 2026-09-07
CVE-2026-86432 json commonmark versions from 2.0.0 before 2.8.4 contain a denial of service vulnerability in XmlRenderer that emits depth-proport... Not Provided 2026-09-07 2026-09-07
CVE-2026-86431 json league/commonmark (thephpleague/commonmark) versions >= 2.7.0 and < 2.9.1 contain a cross-site scripting vulnerability in the... Not Provided 2026-09-07 2026-09-07
CVE-2026-86430 json league/commonmark versions before 2.9.1 contain multiple denial of service vulnerabilities in fenced code block detection, re... Not Provided 2026-09-07 2026-09-07
CVE-2026-86429 json The league/commonmark (thephpleague/commonmark) library in versions >= 1.5.0 and < 2.9.1 contains quadratic parsing complexit... Not Provided 2026-09-07 2026-09-07
CVE-2026-86428 json commonmark versions from 1.5.0 before 2.10.0 contain a denial of service vulnerability in the AttributesExtension when proces... Not Provided 2026-09-07 2026-09-07
CVE-2026-71488 json league/commonmark is a PHP library for parsing and rendering CommonMark Markdown. From 0.6.0 until 2.9.0, specially crafted M... Not Provided 2026-08-06 2026-08-07
CVE-2026-71478 json league/commonmark is a PHP library for parsing and rendering CommonMark Markdown. From 1.5.0 until 2.9.0, the AttributesExten... Not Provided 2026-08-06 2026-08-07
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationThephpleagueCommonmark1.0.0
ApplicationThephpleagueCommonmark1.0.0
ApplicationThephpleagueCommonmark1.0.0
ApplicationThephpleagueCommonmark1.0.0
ApplicationThephpleagueCommonmark1.0.0
ApplicationThephpleagueCommonmark1.0.0
ApplicationThephpleagueCommonmark0.9.0
ApplicationThephpleagueCommonmark0.8.0
ApplicationThephpleagueCommonmark0.7.2
ApplicationThephpleagueCommonmark0.7.1
ApplicationThephpleagueCommonmark0.7.0
ApplicationThephpleagueCommonmark0.6.1
ApplicationThephpleagueCommonmark0.6.0
ApplicationThephpleagueCommonmark0.5.1
ApplicationThephpleagueCommonmark0.5.0
ApplicationThephpleagueCommonmark0.19.3
ApplicationThephpleagueCommonmark0.19.2
ApplicationThephpleagueCommonmark0.19.1
ApplicationThephpleagueCommonmark0.19.0
ApplicationThephpleagueCommonmark0.18.5
Results limited to 20 most recent known configurations

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