{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54673", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-15T22:53:58.560Z", "datePublished": "2026-06-30T22:11:37.587Z", "dateUpdated": "2026-07-01T13:26:49.397Z"}, "containers": {"cna": {"title": "electron-updater: Cross-origin redirect leaks `PRIVATE-TOKEN` and mixed-case `Authorization` credentials in `builder-util-runtime`", "problemTypes": [{"descriptions": [{"cweId": "CWE-200", "lang": "en", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797"}, {"name": "https://github.com/electron-userland/electron-builder/commit/22a7532bd01b9fb42cff7c58d599c7ad683569fe", "tags": ["x_refsource_MISC"], "url": "https://github.com/electron-userland/electron-builder/commit/22a7532bd01b9fb42cff7c58d599c7ad683569fe"}], "affected": [{"vendor": "electron-userland", "product": "electron-builder", "versions": [{"version": "< 26.15.0", "status": "affected"}]}, {"vendor": "electron-userland", "product": "builder-util-runtime", "versions": [{"version": "< 9.7.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-30T22:12:18.294Z"}, "descriptions": [{"lang": "en", "value": "electron-updater allows for automatic updates for Electron apps. Prior to 9.7.0, the HTTP redirect handler (HttpExecutor.prepareRedirectUrlOptions) only stripped a credential header whose key string matched exactly lowercase \"authorization\", exposing credentials. Other credential-bearing headers \u2014 most notably PRIVATE-TOKEN (used by GitLab's personal access token flow) and mixed-case Authorization (used by GitLab's Bearer/OAuth flow) \u2014 were not stripped and could be forwarded to an attacker-controlled cross-origin redirect destination. This issue has been fixed in version 9.7.0."}], "source": {"advisory": "GHSA-p2f4-r6v6-j797", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-01T13:26:40.473989Z", "id": "CVE-2026-54673", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-01T13:26:49.397Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-54673", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-01T13:26:40.473989Z"}}}], "references": [{"url": "https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-01T13:26:32.042Z"}}], "cna": {"title": "electron-updater: Cross-origin redirect leaks `PRIVATE-TOKEN` and mixed-case `Authorization` credentials in `builder-util-runtime`", "source": {"advisory": "GHSA-p2f4-r6v6-j797", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "electron-userland", "product": "electron-builder", "versions": [{"status": "affected", "version": "< 26.15.0"}]}, {"vendor": "electron-userland", "product": "builder-util-runtime", "versions": [{"status": "affected", "version": "< 9.7.0"}]}], "references": [{"url": "https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797", "name": "https://github.com/electron-userland/electron-builder/security/advisories/GHSA-p2f4-r6v6-j797", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/electron-userland/electron-builder/commit/22a7532bd01b9fb42cff7c58d599c7ad683569fe", "name": "https://github.com/electron-userland/electron-builder/commit/22a7532bd01b9fb42cff7c58d599c7ad683569fe", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "electron-updater allows for automatic updates for Electron apps. Prior to 9.7.0, the HTTP redirect handler (HttpExecutor.prepareRedirectUrlOptions) only stripped a credential header whose key string matched exactly lowercase \"authorization\", exposing credentials. Other credential-bearing headers \u2014 most notably PRIVATE-TOKEN (used by GitLab's personal access token flow) and mixed-case Authorization (used by GitLab's Bearer/OAuth flow) \u2014 were not stripped and could be forwarded to an attacker-controlled cross-origin redirect destination. This issue has been fixed in version 9.7.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-30T22:12:18.294Z"}}}, "cveMetadata": {"cveId": "CVE-2026-54673", "state": "PUBLISHED", "dateUpdated": "2026-07-01T13:26:49.397Z", "dateReserved": "2026-06-15T22:53:58.560Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-06-30T22:11:37.587Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

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