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CVE-2026-86428: commonmark from 1.5.0 (inclusive), before 2.10.0 (exclusive), 1.5.0 to before 2.10.0
CVE-2026-86428. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.00493 (percentile 0.40297), scored 2026-10-06.
Affected technology
commonmark · from 1.5.0 (inclusive), before 2.10.0 (exclusive)
thephpleague
commonmark · 1.5.0 to before 2.10.0
thephpleague
Description’s affected range: versions from 1.5.0 before 2.10.0
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
The source reports that an attacker could disrupt service under the conditions described by the source. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-407
- CCR priority
- 30.1 /100 (P4)
- CVSS 3.1
- 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Vendor/CNA
- EPSS
- 0.00493 · percentile 0.40409 · 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-2026-86428.html