CVE-2026-2327

HIGH
7.5
CVSS Score
Published: February 12, 2026 at 05:00 AM UTC
Updated: June 17, 2026 at 10:30 AM UTC
1 product affected across 1 vendorMarkdown IT

Using markdown-it by N/A?

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
PoC

Description

Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of the regex /\*+$/ in the linkify function. An attacker can supply a long sequence of * characters followed by a non-matching character, which triggers excessive backtracking and may lead to a denial-of-service condition.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

13.0.0 ≤ v < 14.1.113.0.0
Affected range stops below 14.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1333

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