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CVE-2026-86431: commonmark from 2.7.0 (inclusive), before 2.9.1 (exclusive), 2.7.0 to before 2.9.1
CVE-2026-86431. CVSS 3.1 base score 7.2 (HIGH, Vendor/CNA). EPSS 0.00388 (percentile 0.30668), scored 2026-10-06.
Affected technology
commonmark · from 2.7.0 (inclusive), before 2.9.1 (exclusive)
thephpleague
commonmark · 2.7.0 to before 2.9.1
thephpleague
Description’s affected range: versions >= 2.7.0 and < 2.9.1
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Vendor/CNA’s CVSS 4.0 assessment (base score 6.9/10) rates confidentiality and integrity impact as low; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-79
- CCR priority
- 28.9 /100 (P4)
- CVSS 3.1
- 7.2 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N · Vendor/CNA
- EPSS
- 0.00388 · percentile 0.30781 · 2026-10-08
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-86431.html