GHSA-4fh9-h7wg-q85m: mdast-util-to-hast fixed in 13.2.1

GHSA-4fh9-h7wg-q85m PUBLISHED CVSS 5.300000190734863 MEDIUM

mdast-util-to-hast has unsanitized class attribute

Record from GitHub Advisory Database · Published December 2, 2025

mdast-util-to-hast is fixed in 13.2.1 (npm)

mdast-util-to-hast has unsanitized class attribute

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
mdast-util-to-hast	npm	13.2.1
keycloak-26.6	Chainguard	26.6.4-r17
langfuse-3	Wolfi	3.137.0-r1
langfuse-fips-2	Chainguard	2.95.12-r1
keycloak-26.6	Wolfi	26.6.4-r17
drupal-11.3	Chainguard	11.3.13-r3
langfuse-2	Chainguard	2.95.12-r2
langfuse-3	Chainguard	3.137.0-r1
librechat	Chainguard	0.8.0-r6

Risk scores

CVSS 3.1

5.300000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

Vendor	Product	Versions
chainguard	keycloak-26.6	0
wolfi	langfuse-3	0
chainguard	langfuse-fips-2	0
wolfi	keycloak-26.6	0
chainguard	drupal-11.3	0
chainguard	langfuse-2	0
npm	mdast-util-to-hast	13.0.0
chainguard	langfuse-3	0
chainguard	librechat	0

Timeline

Dec 2, 2025 CVE Published
Mar 2, 2026 Security Advisory

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vulnetix vdb fixes GHSA-4fh9-h7wg-q85m

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References

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