{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54649", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-15T20:16:46.198Z", "datePublished": "2026-09-17T18:29:23.937Z", "dateUpdated": "2026-09-24T20:55:22.973Z"}, "containers": {"cna": {"title": "punchin-email: Operator inbox (FORWARD_TO) disclosed to correspondents on reply \u2014 Cloudflare forward() drops the relay Reply-To", "problemTypes": [{"descriptions": [{"cweId": "CWE-200", "lang": "en", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-201", "lang": "en", "description": "CWE-201: Insertion of Sensitive Information Into Sent Data", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 2.1, "baseSeverity": "LOW", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/PunchIn-App/punchin-email/security/advisories/GHSA-2ph7-69xm-hmwv", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/PunchIn-App/punchin-email/security/advisories/GHSA-2ph7-69xm-hmwv"}, {"name": "https://github.com/PunchIn-App/punchin-email/pull/66", "tags": ["x_refsource_MISC"], "url": "https://github.com/PunchIn-App/punchin-email/pull/66"}, {"name": "https://github.com/PunchIn-App/punchin-email/commit/593685ffc0b8eb3949a4838e7bfe1e97b953d084", "tags": ["x_refsource_MISC"], "url": "https://github.com/PunchIn-App/punchin-email/commit/593685ffc0b8eb3949a4838e7bfe1e97b953d084"}, {"name": "https://github.com/PunchIn-App/punchin-email/releases/tag/v1.5.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/PunchIn-App/punchin-email/releases/tag/v1.5.0"}], "affected": [{"vendor": "PunchIn-App", "product": "punchin-email", "versions": [{"version": "< 1.5.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-17T18:29:23.937Z"}, "descriptions": [{"lang": "en", "value": "punchin-email is a Cloudflare Email Worker that provides two-way role aliases while relaying mail to a private inbox. Prior to 1.5.0, handleInbound delivers inbound alias mail with message.forward(), which silently drops the added Reply-To header intended to route responses through the relay. When a correspondent sends mail to an alias and the operator replies, the mail client can send directly to the correspondent from the private FORWARD_TO inbox address, exposing that address. The disclosure is limited to the operator's own email address and does not expose third-party data or provide code execution or authentication bypass. This issue is fixed in version 1.5.0."}], "source": {"advisory": "GHSA-2ph7-69xm-hmwv", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-54649", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-24T20:39:47.675180Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T20:55:22.973Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-54649", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-24T20:39:47.675180Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T20:50:09.374Z"}}], "cna": {"title": "punchin-email: Operator inbox (FORWARD_TO) disclosed to correspondents on reply \u2014 Cloudflare forward() drops the relay Reply-To", "source": {"advisory": "GHSA-2ph7-69xm-hmwv", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 2.1, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "userInteraction": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW"}}], "affected": [{"vendor": "PunchIn-App", "product": "punchin-email", "versions": [{"status": "affected", "version": "< 1.5.0"}]}], "references": [{"url": "https://github.com/PunchIn-App/punchin-email/security/advisories/GHSA-2ph7-69xm-hmwv", "name": "https://github.com/PunchIn-App/punchin-email/security/advisories/GHSA-2ph7-69xm-hmwv", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/PunchIn-App/punchin-email/pull/66", "name": "https://github.com/PunchIn-App/punchin-email/pull/66", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/PunchIn-App/punchin-email/commit/593685ffc0b8eb3949a4838e7bfe1e97b953d084", "name": "https://github.com/PunchIn-App/punchin-email/commit/593685ffc0b8eb3949a4838e7bfe1e97b953d084", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/PunchIn-App/punchin-email/releases/tag/v1.5.0", "name": "https://github.com/PunchIn-App/punchin-email/releases/tag/v1.5.0", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "punchin-email is a Cloudflare Email Worker that provides two-way role aliases while relaying mail to a private inbox. Prior to 1.5.0, handleInbound delivers inbound alias mail with message.forward(), which silently drops the added Reply-To header intended to route responses through the relay. When a correspondent sends mail to an alias and the operator replies, the mail client can send directly to the correspondent from the private FORWARD_TO inbox address, exposing that address. The disclosure is limited to the operator's own email address and does not expose third-party data or provide code execution or authentication bypass. This issue is fixed in version 1.5.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-201", "description": "CWE-201: Insertion of Sensitive Information Into Sent Data"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-17T18:29:23.937Z"}}}, "cveMetadata": {"cveId": "CVE-2026-54649", "state": "PUBLISHED", "dateUpdated": "2026-09-24T20:55:22.973Z", "dateReserved": "2026-06-15T20:16:46.198Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-09-17T18:29:23.937Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "punchin-email", "vendor": "PunchIn-App", "versions": [{"status": "affected", "version": "< 1.5.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "punchin-email is a Cloudflare Email Worker that provides two-way role aliases while relaying mail to a private inbox. Prior to 1.5.0, handleInbound delivers inbound alias mail with message.forward(), which silently drops the added Reply-To header intended to route responses through the relay. When a correspondent sends mail to an alias and the operator replies, the mail client can send directly to the correspondent from the private FORWARD_TO inbox address, exposing that address. The disclosure is limited to the operator's own email address and does not expose third-party data or provide code execution or authentication bypass. This issue is fixed in version 1.5.0."}], "id": "CVE-2026-54649", "lastModified": "2026-09-30T17:32:07.107", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54649", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-24T20:39:47.675180Z", "version": "2.0.3"}}]}, "published": "2026-09-17T19:16:51.163", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/PunchIn-App/punchin-email/commit/593685ffc0b8eb3949a4838e7bfe1e97b953d084"}, {"source": "security-advisories@github.com", "url": "https://github.com/PunchIn-App/punchin-email/pull/66"}, {"source": "security-advisories@github.com", "url": "https://github.com/PunchIn-App/punchin-email/releases/tag/v1.5.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/PunchIn-App/punchin-email/security/advisories/GHSA-2ph7-69xm-hmwv"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-201"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.5.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "punchin-email", "source": "cna", "vendor": "PunchIn-App"}, "product": "punchin-email", "vendor": "punchin-app"}], "created": "2026-09-18T20:01:17.607821+00:00", "updated": "2026-09-19T03:30:18.169191+00:00", "vendors": ["punchin-app", "punchin-app$PRODUCT$punchin-email"]}