MEDIUMVulnerability
CVE-2026-86432
commonmark versions from 2.0.0 before 2.8.4 contain a denial of service vulnerability in XmlRenderer that emits depth-proportional indentation for every XML tag. Attackers can provide deeply nested Markdown or AST structures to cause quadratic memory consumption and output amplification, exhausting server resources.
Properties
- severity
- MEDIUM
- score
- 5.3
- cve_id
- CVE-2026-86432
- signal_observed_at
- 2026-09-16T21:37:07+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- published_at
- 2026-09-07T13:20:42.600
- last_modified
- 2026-09-10T16:18:02.793
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Asymmetric Resource Consumption (Amplification)
DESCRIBED_BY (1)
→[Source]NVD
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