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source-map-js allows event-loop denial of service through indexed source-map section offsets

CVE-2026-93749 affects source-map-js. CVSS base score 7.5 (GitHub Advisory Database). EPSS 0.0063 (percentile 0.48363), scored 2026-10-04. Affected range: >= 1.0.0, < 1.2.2. Fixed version: 1.2.2.

Published 2026-10-06 00:14:26.915236+00:00

CVE

CVE-2026-93749

Product

source-map-js

CCR priority

30.2 /100 (P4)

CVSS

7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · GitHub Advisory Database

EPSS

0.0063 · percentile 0.48363 · 2026-10-04

KEV

no

Affected products

• source-map-js · >= 1.0.0, < 1.2.2 · Fixed version: 1.2.2

Provenance

• GitHub Advisory Database · Source record · observed 2026-10-06 00:14:20.210633+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-93749.html