Moderate severityNVD Advisory· Published Feb 12, 2026· Updated Feb 12, 2026
CVE-2026-2327
CVE-2026-2327
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
markdown-itnpm | >= 13.0.0, < 14.1.1 | 14.1.1 |
Affected products
23- osv-coords22 versionspkg:apk/chainguard/kibana-8.17pkg:apk/chainguard/kibana-8.17-iamguardedpkg:apk/chainguard/kibana-8.19pkg:apk/chainguard/kibana-8.19-bitnamipkg:apk/chainguard/kibana-8.19-iamguardedpkg:apk/chainguard/kibana-9.0pkg:apk/chainguard/kibana-9.0-bitnamipkg:apk/chainguard/kibana-9.0-iamguardedpkg:apk/chainguard/kibana-9.1pkg:apk/chainguard/kibana-9.1-iamguardedpkg:apk/chainguard/kibana-9.2pkg:apk/chainguard/kibana-9.2-iamguardedpkg:apk/chainguard/kibana-9.3pkg:apk/chainguard/kibana-9.3-iamguardedpkg:apk/chainguard/renovatepkg:apk/chainguard/semaphorepkg:apk/chainguard/vitess-22pkg:apk/chainguard/vitess-23pkg:apk/wolfi/renovatepkg:apk/wolfi/vitess-22pkg:apk/wolfi/vitess-23pkg:npm/markdown-it
< 8.17.10-r10+ 21 more
- (no CPE)range: < 8.17.10-r10
- (no CPE)range: < 8.17.10-r10
- (no CPE)range: < 8.19.11-r1
- (no CPE)range: < 8.19.11-r1
- (no CPE)range: < 8.19.11-r1
- (no CPE)range: < 9.0.8-r10
- (no CPE)range: < 9.0.8-r10
- (no CPE)range: < 9.0.8-r10
- (no CPE)range: < 9.1.10-r5
- (no CPE)range: < 9.1.10-r5
- (no CPE)range: < 9.2.5-r3
- (no CPE)range: < 9.2.5-r3
- (no CPE)range: < 9.3.0-r1
- (no CPE)range: < 9.3.0-r1
- (no CPE)range: < 43.25.2-r0
- (no CPE)range: < 2.18.12-r2
- (no CPE)range: < 22.0.3-r2
- (no CPE)range: < 23.0.2-r1
- (no CPE)range: < 43.25.2-r0
- (no CPE)range: < 22.0.3-r2
- (no CPE)range: < 23.0.2-r1
- (no CPE)range: >= 13.0.0, < 14.1.1
- Range: 13.0.0
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-38c4-r59v-3vqwghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-2327ghsaADVISORY
- gist.github.com/ltduc147/c9abecae1b291ede4f692f2ab988c917ghsaWEB
- github.com/markdown-it/markdown-it/blob/14.1.0/lib/rules_inline/linkify.mjsghsaWEB
- github.com/markdown-it/markdown-it/commit/4b4bbcae5e0990a5b172378e507b33a59012ed26ghsaWEB
- security.snyk.io/vuln/SNYK-JS-MARKDOWNIT-10666750ghsaWEB
- github.com/markdown-it/markdown-it/blob/14.1.0/lib/rules_inline/linkify.mjs%23L33mitre
News mentions
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