{"id":"BIT-golang-2026-39826","revision":null,"records":[{"revision":"db0c19ad4c6b4c768df038455d62102b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-39826","aliases":[],"title":"Escaper bypass leads to XSS in html/template","description":"If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.","state":0,"publishedAt":"2026-05-07T19:41:19.138+00:00","modifiedAt":"2026-05-08T14:05:05.849+00:00","affected":[{"ecosystem":"https://pkg.go.dev","name":"html/template","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Go standard library\",\n                    \"product\": \"html/template\",\n                    \"collectionURL\": \"https://pkg.go.dev\",\n                    \"packageName\": \"html/template\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"1.25.10\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"1.26.0-0\",\n                            \"lessThan\": \"1.26.3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"isJSType\"\n                        },\n                        {\n                            \"name\": \"Template.Execute\"\n                        },\n                        {\n                            \"name\": \"Template.ExecuteTemplate\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[],"references":["https://go.dev/issue/78981","https://go.dev/cl/771180","https://groups.google.com/g/golang-announce/c/qcCIEXso47M","https://pkg.go.dev/vuln/GO-2026-4980"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-39826","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-39826","identifiers":["CVE-2026-39826"]},"retained":false,"historicalAffected":[]},{"revision":"f3d589a3075a4a708ab054498a3fabc8","observedAt":"2026-11-01T06:14:07.463+00:00","statement":{"source":"euvd","id":"EUVD-2026-28426","aliases":["CVE-2026-39826"],"title":"If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.","description":"If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1,"severity":null}],"references":["https://go.dev/issue/78981","https://go.dev/cl/771180","https://groups.google.com/g/golang-announce/c/qcCIEXso47M","https://pkg.go.dev/vuln/GO-2026-4980"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28426","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 7, 2026, 7:41:19 PM","dateUpdated":"May 8, 2026, 2:05:05 PM"},"relatedAdvisories":[{"id":"openSUSE-SU-2026:20762-1","title":"Security update for 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bypass leads to XSS in html/template","vulnerabilityIds":["CVE-2026-39826"]},{"id":"RHSA-2026:57649","title":"Red Hat Security Advisory: golang security update","vulnerabilityIds":["CVE-2026-27137","CVE-2026-27145","CVE-2026-33810","CVE-2026-33811","CVE-2026-33814","CVE-2026-39817","CVE-2026-39819","CVE-2026-39820","CVE-2026-39821","CVE-2026-39822","CVE-2026-39823","CVE-2026-39825","CVE-2026-39826","CVE-2026-42499","CVE-2026-42501","CVE-2026-42504","CVE-2026-42507"]},{"id":"RHSA-2026:61253","title":"Red Hat Security Advisory: golang security update","vulnerabilityIds":["CVE-2026-27137","CVE-2026-27145","CVE-2026-33810","CVE-2026-33811","CVE-2026-33814","CVE-2026-39817","CVE-2026-39819","CVE-2026-39820","CVE-2026-39821","CVE-2026-39822","CVE-2026-39823","CVE-2026-39825","CVE-2026-39826","CVE-2026-42499","CVE-2026-42501","CVE-2026-42504","CVE-2026-42507"]},{"id":"openSUSE-SU-2026:20763-1","title":"Security update for 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go1.26","vulnerabilityIds":["CVE-2026-33811","CVE-2026-33814","CVE-2026-39817","CVE-2026-39819","CVE-2026-39820","CVE-2026-39823","CVE-2026-39825","CVE-2026-39826","CVE-2026-39836","CVE-2026-42499","CVE-2026-42501"]},{"id":"RHSA-2026:91248","title":"Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (Neuron)","vulnerabilityIds":["CVE-2025-69418","CVE-2026-6653","CVE-2026-11979","CVE-2026-13346","CVE-2026-25679","CVE-2026-25680","CVE-2026-25681","CVE-2026-27136","CVE-2026-27137","CVE-2026-27138","CVE-2026-27139","CVE-2026-27141","CVE-2026-27142","CVE-2026-27145","CVE-2026-28390","CVE-2026-31790","CVE-2026-32280","CVE-2026-32281","CVE-2026-32282","CVE-2026-32288","CVE-2026-32289","CVE-2026-33811","CVE-2026-33814","CVE-2026-34182","CVE-2026-34183","CVE-2026-39820","CVE-2026-39822","CVE-2026-39823","CVE-2026-39825","CVE-2026-39826","CVE-2026-39836","CVE-2026-42499","CVE-2026-42502","CVE-2026-42504","CVE-2026-42505","CVE-2026-42506","CVE-2026-42507","CVE-2026-44172","CVE-2026-45445","CVE-2026-45447","CVE-2026-74860","CVE-2026-86138","CVE-2026-86140","CVE-2026-86142","CVE-2026-86143","CVE-2026-86144","CVE-2026-86145","CVE-2026-89090","CVE-2026-89161","CVE-2026-103111","CVE-2026-114406"]},{"id":"SUSE-SU-2026:22572-1","title":"Security update for 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Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-28426","identifiers":["EUVD-2026-28426","CVE-2026-39826"]},"retained":false,"historicalAffected":[]},{"revision":"03b753ddf4e142abbe5228e6c460e452","observedAt":"2026-10-27T10:09:56.341+00:00","statement":{"source":"nvd","id":"CVE-2026-39826","aliases":[],"title":"If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.","description":"If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.","state":0,"publishedAt":"2026-05-07T20:16:43.49+00:00","modifiedAt":"2026-10-26T20:10:00.16+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1,"severity":"MEDIUM"}],"references":["https://go.dev/cl/771180","https://go.dev/issue/78981","https://groups.google.com/g/golang-announce/c/qcCIEXso47M","https://pkg.go.dev/vuln/GO-2026-4980"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-39826","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-116"],"productCriteria":["cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-05-07T20:16:43.490","lastModified":"2026-10-26T20:10:00.160"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-39826","identifiers":["CVE-2026-39826"]},"retained":false,"historicalAffected":[]},{"revision":"f89f066af4474995af981f5eac630d2b","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-4980","aliases":["BIT-golang-2026-39826","CVE-2026-39826"],"title":"Escaper bypass leads to XSS in html/template","description":"If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.","state":0,"publishedAt":"2026-05-07T19:21:40+00:00","modifiedAt":"2026-08-31T10:25:58.4293721+00:00","affected":[{"ecosystem":"Go","name":"stdlib","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.25.10"},{"kind":"introduced","version":"1.26.0-0"},{"kind":"fixed","version":"1.26.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://go.dev/issue/78981","https://go.dev/cl/771180","https://groups.google.com/g/golang-announce/c/qcCIEXso47M"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-4980","license":"OSV · upstream source license applies","key":"osv:GO-2026-4980","identifiers":["GO-2026-4980","BIT-golang-2026-39826","CVE-2026-39826"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-02T16:59:10.1690873+00:00","complete":true,"records":1095,"lastAttemptAt":"2026-11-02T16:59:10.1690873+00:00","lastSuccessAt":"2026-11-02T16:59:10.3123623+00:00","error":null,"lastVerifiedAt":"2026-11-02T16:59:10.3123624+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-a52593857bad4381a86db8a8b44be613","complete":true,"records":13580,"lastAttemptAt":"2026-11-02T16:59:10.8868787+00:00","lastSuccessAt":"2026-11-02T15:57:47.378+00:00","error":null,"lastVerifiedAt":"2026-11-02T15:57:47.378+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13637,"expectedIdentifiers":13637,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-21dcd6662970dfea02e4ea60ee637115e8d92664947484d2b9276b3f6568a84f","complete":true,"records":9815,"lastAttemptAt":"2026-11-02T16:59:09.9326132+00:00","lastSuccessAt":"2026-10-30T23:47:34.1817587+00:00","error":null,"lastVerifiedAt":"2026-11-02T16:59:09.9326132+00:00","snapshotPublishedAt":"2026-10-30T23:33:17+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-2de9ccc5290f060c7aa63f89c25dd76f655a64ba1aba7c05c97fa3bee4f09899","complete":true,"records":1967,"lastAttemptAt":"2026-11-02T16:57:24.3688876+00:00","lastSuccessAt":"2026-10-28T20:55:34.2982937+00:00","error":null,"lastVerifiedAt":"2026-11-02T16:57:24.3688876+00:00","snapshotPublishedAt":"2026-10-28T20:03:08+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-5eac0f41c5234939771ec81ee6dcecba911c3ba21e363f4cecd95fcede18b96b","complete":true,"records":3035,"lastAttemptAt":"2026-11-02T16:59:10.128203+00:00","lastSuccessAt":"2026-11-02T13:57:36.6498985+00:00","error":null,"lastVerifiedAt":"2026-11-02T16:59:10.128203+00:00","snapshotPublishedAt":"2026-11-02T12:18:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-204813e4df71f7a2214cb16c924f482af6e49a4adf7efb0aebb0bd02e4e23b8c","complete":true,"records":231027,"lastAttemptAt":"2026-11-02T16:59:09.7642824+00:00","lastSuccessAt":"2026-11-02T16:59:08.3366694+00:00","error":null,"lastVerifiedAt":"2026-11-02T16:59:09.7642824+00:00","snapshotPublishedAt":"2026-11-02T16:33:40+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}