CVE-2023-28626

Quadratic runtime when parsing Markdown in comrak

Published Mar 28, 2023 CVSS 3.1 · 5.3 Medium EPSS 1.1% KEV · Not listed
Description
comrak is a CommonMark + GFM compatible Markdown parser and renderer written in rust. A range of quadratic parsing issues are present in Comrak. These can be used to craft denial-of-service attacks on services that use Comrak to parse Markdown. This issue has been addressed in version 0.17.0. Users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as `GHSL-2023-047`

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-0947 comrak is a CommonMark + GFM compatible Markdown parser and renderer written in rust. A range of quadratic parsing issues are present in Comrak. These can be used to craft denial-of-service attacks on services that use Comrak to parse Markdown. This issue has been addressed in version 0.17.0. Users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as `GHSL-2023-047`
Github GHSA Github GHSA GHSA-8hqf-xjwp-p67v Comrak vulnerable to quadratic runtime issues when parsing Markdown (GHSL-2023-047)
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 18, 2025, 7:03 PM
Reserved
Mar 20, 2023, 12:19 PM
Status
Modified
Published
Mar 28, 2023, 9:15 PM
Modified
Jun 17, 2026, 5:48 AM