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Δ / VULNERABILITY RECORD

CVE-2026-40890.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7.5No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Sep 24, 2026

Disclosure summary

github.com/gomarkdown/markdown: Out-of-bounds Read in SmartypantsRenderer

Source-reported weakness categories

CWE-125

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Apr

Open original source · Updated Sep 24, 2026

github.com/gomarkdown/markdown: Out-of-bounds Read in SmartypantsRenderer

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 7.5

VendorProduct / associationVersion / bounds
Microsoft update guidecbl2 cri-o 1.22.3-20 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 cri-o 1.22.3-20 on CBL-Mariner 2.0 (MSRC status code 3)

Vendor remediation references

  • CBL-Mariner Releases · build 1.22.3-21 · product IDs 21187-17086
  • Vendor guidance · product IDs 21187-17086
  • Release Notes · build 1.22.3-21 · product IDs 21187-21692
  • Vendor guidance · product IDs 21187-21692

Original records & references

PUBLISHED 2026-04-22T21:04:01-04:00
MODIFIED 2026-09-24T21:58:39-04:00
INGESTED 2026-10-08T12:45:03-04:00