{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48920", "assignerOrgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "state": "PUBLISHED", "assignerShortName": "jenkins", "dateReserved": "2026-05-26T14:50:46.813Z", "datePublished": "2026-05-27T14:13:48.568Z", "dateUpdated": "2026-05-27T15:43:07.808Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "39769cd5-e6e2-4dc8-927e-97b3aa056f5b", "shortName": "jenkins", "dateUpdated": "2026-05-27T14:13:48.568Z"}, "affected": [{"vendor": "Jenkins Project", "product": "Jenkins Email Extension Plugin", "versions": [{"version": "0", "versionType": "maven", "lessThanOrEqual": "1933.v45cec755423f", "status": "affected"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64` in email content by setting the `data-inline` attribute, without restrictions on the image URLs that can be inlined, allowing attackers able to control the email content to specify `file:` URLs for images to read arbitrary files from the Jenkins controller filesystem."}], "references": [{"name": "Jenkins Security Advisory 2026-05-27", "url": "https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3705", "tags": ["vendor-advisory"]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-73", "lang": "en", "description": "CWE-73 External Control of File Name or Path"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-05-27T15:43:03.856495Z", "id": "CVE-2026-48920", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-27T15:43:07.808Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64` in email content by setting the `data-inline` attribute, without restrictions on the image URLs that can be inlined, allowing attackers able to control the email content to specify `file:` URLs for images to read arbitrary files from the Jenkins controller filesystem."}], "id": "CVE-2026-48920", "lastModified": "2026-05-27T15:16:31.647", "metrics": {}, "published": "2026-05-27T15:16:31.647", "references": [{"source": "jenkinsci-cert@googlegroups.com", "url": "https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3705"}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com", "vulnStatus": "Received"}

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