Medium severity · published Apr 21, 2026
CVE-2026-33812
Excessive memory allocation when decoding malicious SFNT in golang.org/x/image
6.1
CVSS
0.1%
EPSS
No
On KEV
Description
Parsing a malicious font file can cause excessive memory allocation.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
golang.org/x/image/font/sfnt · golang.org/x/image
before 0.39.0 · source: vendor
IM
Image · Golang
before 0.39.0 · source: NVD
Affected product
GO
golang.org/x/image/font/sfnt
golang.org/x/image