{"id":"CVE-2026-54649","revision":"3cc2def32d6748b996d87ead9e547cfb","records":[{"revision":"3cc2def32d6748b996d87ead9e547cfb","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-54649","aliases":[],"title":"punchin-email: Operator inbox (FORWARD_TO) disclosed to correspondents on reply — Cloudflare forward() drops the relay Reply-To","description":"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.","state":0,"publishedAt":"2026-09-17T18:29:23.937+00:00","modifiedAt":"2026-09-24T20:55:22.973+00:00","affected":[{"ecosystem":"Vendor product","name":"punchin-email","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"PunchIn-App\",\n                    \"product\": \"punchin-email\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.5.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":2.1,"severity":"LOW"}],"references":["https://github.com/PunchIn-App/punchin-email/security/advisories/GHSA-2ph7-69xm-hmwv","https://github.com/PunchIn-App/punchin-email/pull/66","https://github.com/PunchIn-App/punchin-email/commit/593685ffc0b8eb3949a4838e7bfe1e97b953d084","https://github.com/PunchIn-App/punchin-email/releases/tag/v1.5.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54649","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54649","identifiers":["CVE-2026-54649"]},"retained":false,"historicalAffected":[]}],"coverage":[]}