CVE-2026-86433
EUVD-2026-7239107.09.2026, 13:20
commonmark versions from 1.5.0 before 2.8.4 contain a denial of service vulnerability in the Attributes extension where AttributesListener::findTargetAndDirection() performs quadratic-time sibling list scanning. Unauthenticated attackers can submit approximately 32 KB of repeated attribute blocks to cause parsing to take over 5 seconds, exhausting server resources.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| thephpleague | commonmark | 1.5.0 ≤ 𝑥 < 2.8.4 | CNA |
Debian Releases