CVE-2025-46656
LOW
3.3
CVSS Score
Published: April 26, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 09:26 AM UTC
2 products affected across 2 vendorsMarkdownifyMarkdownify
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Severity
LOW3.3
Exploit prediction
EPSS 0.2%
SSVC
PoC
Description
python-markdownify (aka markdownify) before 0.14.1 allows large headline prefixes such as <h9999999> in addition to <h1> through <h6>. This causes memory consumption.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 0.14.1
v < 0.14.1
Affected range stops below 0.14.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
SSVC — Action Prioritization
SSVCPoCNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusANALYZED
CWE
CWE-1284
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