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CVE Vulnerability Details :
CVE-2026-33812
PUBLISHED
More InfoOfficial Page
Assigner-Go
Assigner Org ID-1bb62c36-49e3-4200-9d77-64a1400537cc
View Known Exploited Vulnerability (KEV) details
Published At-21 Apr, 2026 | 19:21
Updated At-21 Apr, 2026 | 20:43
Rejected At-
▼CVE Numbering Authority (CNA)
Excessive memory allocation when decoding malicious SFNT in golang.org/x/image

Parsing a malicious font file can cause excessive memory allocation.

Affected Products
Vendor
golang.org/x/image
Product
golang.org/x/image/font/sfnt
Collection URL
https://pkg.go.dev
Package Name
golang.org/x/image/font/sfnt
Program Routines
  • source.view
  • Collection.Font
  • Font.GlyphAdvance
  • Font.GlyphBounds
  • Font.GlyphIndex
  • Font.GlyphName
  • Font.Kern
  • Font.LoadGlyph
  • Font.Name
  • Font.WriteSourceTo
  • Parse
  • ParseCollection
  • ParseCollectionReaderAt
  • ParseReaderAt
Default Status
unaffected
Versions
Affected
  • From 0 before 0.39.0 (semver)
Problem Types
TypeCWE IDDescription
N/AN/ACWE-789: Memory Allocation with Excessive Size Value
Type: N/A
CWE ID: N/A
Description: CWE-789: Memory Allocation with Excessive Size Value
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Andy Gill, ZephrSec Ltd
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://go.dev/cl/761180
N/A
https://go.dev/issue/78382
N/A
https://pkg.go.dev/vuln/GO-2026-4962
N/A
Hyperlink: https://go.dev/cl/761180
Resource: N/A
Hyperlink: https://go.dev/issue/78382
Resource: N/A
Hyperlink: https://pkg.go.dev/vuln/GO-2026-4962
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.16.1MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Version: 3.1
Base score: 6.1
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found