VDB

CVE-2026-93749

CVE-2026-93749 PUBLISHED CVSS 8.7 HIGH

Reported by VulnCheck · Published September 18, 2026

source-map-js through 1.2.1 fails to validate the per-section offset line value in indexed source maps, allowing attackers to specify arbitrary numeric values. Attackers can supply extremely large offset line values that cause synchronous event loop blocking for extended periods, preventing the service from handling other requests.

Risk Scores

CVSS 4.0
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected Products

VendorProductVersions
7rulniksource-map-js0
chainguardsaf0
chainguardauthentik-fips-2026.50
chainguardunleash-fips0
wolfilangfuse-30, 0
chainguardgitlab-rails-ce-fips-18.110
chainguardsemaphore0
wolfiopensearch-dashboards-30, 0
chainguardcommercial-gitlab-rails-ee-19.40
chainguardcommercial-gitlab-rails-ee-19.10
chainguardlangfuse-40
chainguardgitlab-rails-ce-fips-19.10
chainguardcommercial-gitlab-rails-ee-19.30
npmsource-map-js1.0.0
7rulniksource-map-js0, 0, 0
chainguardunleash0
chainguardgitlab-rails-ce-19.30
wolfijupyter-base-notebook0, 0
chainguardhomepage0
chainguardvitess-240

…and 39 more

Timeline

  • Sep 18, 2026 CVE Published
  • Sep 19, 2026 EPSS Score
  • Sep 21, 2026 EPSS Score
  • Sep 22, 2026 EPSS Score
  • Sep 22, 2026 CVE Updated
  • Sep 24, 2026 EPSS Score
  • Sep 26, 2026 EPSS Score
  • Sep 30, 2026 EPSS Score
  • Oct 2, 2026 EPSS Score
  • Oct 6, 2026 EPSS Score
  • Oct 6, 2026 Security Advisory
  • Oct 9, 2026 EPSS Score

References

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