CVE-2026-71488
1 advisory.
Packagist/league/commonmark CVE-2026-71488: high 7.5, EPSS 0.63%
league/commonmark: Quadratic-time denial of service when parsing crafted Markdown
Action: Upgrade league/commonmark to 2.9.0 or later.
composer require league/commonmark:2.9.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0.6.0 | 2.9.0 | - |
Fixed versions
| 2.9.0 |
Sources
- osv: GHSA-2q4p-g7hv-5rgv
- https://github.com/thephpleague/commonmark/security/advisories/GHSA-2q4p-g7hv-5rgv
- https://github.com/thephpleague/commonmark/commit/a6ef6cdc308dfa39a34239c35818e75892a0e6a8
- https://github.com/thephpleague/commonmark/commit/a70979ea0d7d3377bd7127536748454a922bf5eb
- https://github.com/thephpleague/commonmark/commit/c97b02e5e652b992033b93ba5d6182f706343fc6
- https://github.com/thephpleague/commonmark
- https://github.com/thephpleague/commonmark/releases/tag/2.9.0
CVE-2026-71488 · published · modified · JSON