CVE-2026-33812
Excessive memory allocation when decoding malicious SFNT in golang.org/x/image
MEDIUM
6.1
CVSS Score
Published: April 21, 2026 at 07:21 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsImageFont Sfnt
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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit
Description
Parsing a malicious font file can cause excessive memory allocation.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 0.39.0
Affected range stops below 0.39.0, 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
References (3)
SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.1MEDIUMCISA-ADP
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-770
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