CVE-2026-33812

Parsing a malicious font file can cause excessive memory allocation.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://go.dev/cl/761180	Patch
https://go.dev/issue/78382	Issue Tracking
https://pkg.go.dev/vuln/GO-2026-4962	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:golang:image:*:*:*:*:*:go:*:*

History

No history.

Information

Published : 2026-04-21 20:16

Updated : 2026-06-17 10:38

NVD link : CVE-2026-33812

Mitre link : CVE-2026-33812

CVE.ORG link : CVE-2026-33812

JSON object : View

Products Affected

golang

image

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

{"id": "CVE-2026-33812", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33812", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-21T20:43:08.370574Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security@golang.org", "affectedData": [{"vendor": "golang.org/x/image", "product": "golang.org/x/image/font/sfnt", "versions": [{"status": "affected", "version": "0", "lessThan": "0.39.0", "versionType": "semver"}], "packageName": "golang.org/x/image/font/sfnt", "collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "programRoutines": [{"name": "source.view"}, {"name": "Collection.Font"}, {"name": "Font.GlyphAdvance"}, {"name": "Font.GlyphBounds"}, {"name": "Font.GlyphIndex"}, {"name": "Font.GlyphName"}, {"name": "Font.Kern"}, {"name": "Font.LoadGlyph"}, {"name": "Font.Name"}, {"name": "Font.WriteSourceTo"}, {"name": "Parse"}, {"name": "ParseCollection"}, {"name": "ParseCollectionReaderAt"}, {"name": "ParseReaderAt"}]}]}], "published": "2026-04-21T20:16:56.290", "references": [{"url": "https://go.dev/cl/761180", "tags": ["Patch"], "source": "security@golang.org"}, {"url": "https://go.dev/issue/78382", "tags": ["Issue Tracking"], "source": "security@golang.org"}, {"url": "https://pkg.go.dev/vuln/GO-2026-4962", "tags": ["Vendor Advisory"], "source": "security@golang.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "Parsing a malicious font file can cause excessive memory allocation."}], "lastModified": "2026-06-17T10:38:08.323", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:golang:image:*:*:*:*:*:go:*:*", "vulnerable": true, "matchCriteriaId": "C0501D26-73D5-4E11-80EE-77576FB64671", "versionEndExcluding": "0.39.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@golang.org"}