{"id":"CVE-2026-33812","state":"PUBLISHED","title":"Excessive memory allocation when decoding malicious SFNT in golang.org/x/image","description":"Parsing a malicious font file can cause excessive memory allocation.","publishedAt":"2026-04-21T19:21:28.556Z","updatedAt":"2026-04-21T20:43:11.915Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","source":"CISA-ADP"},"assigner":"Go","products":["golang.org/x/image golang.org/x/image/font/sfnt"],"affected":[{"vendor":"golang.org/x/image","product":"golang.org/x/image/font/sfnt","packageName":"golang.org/x/image/font/sfnt","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.39.0","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","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"}]}],"references":["https://go.dev/cl/761180","https://go.dev/issue/78382","https://pkg.go.dev/vuln/GO-2026-4962"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33812.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33812","state":"PUBLISHED","datePublished":"2026-04-21T19:21:28.556Z","dateUpdated":"2026-04-21T20:43:11.915Z","assignerShortName":"Go","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateReserved":"2026-03-23T20:35:32.814Z"},"containers":{"cna":{"title":"Excessive memory allocation when decoding malicious SFNT in golang.org/x/image","descriptions":[{"lang":"en","value":"Parsing a malicious font file can cause excessive memory allocation."}],"affected":[{"vendor":"golang.org/x/image","product":"golang.org/x/image/font/sfnt","packageName":"golang.org/x/image/font/sfnt","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.39.0","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","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"}]}],"references":[{"url":"https://go.dev/cl/761180"},{"url":"https://go.dev/issue/78382"},{"url":"https://pkg.go.dev/vuln/GO-2026-4962"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-789: Memory Allocation with Excessive Size Value"}]}],"providerMetadata":{"shortName":"Go","orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateUpdated":"2026-04-21T19:21:28.556Z"},"credits":[{"lang":"en","value":"Andy Gill, ZephrSec Ltd"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"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"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T20:43:08.370574Z","id":"CVE-2026-33812","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-21T20:43:11.915Z"}}]}}}