CVE-2026-54649
- Source
- https://cve.org/CVERecord?id=CVE-2026-54649
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54649.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-54649
- Aliases
-
- GHSA-2ph7-69xm-hmwv
- Published
- 2026-09-17T18:29:23Z
- Modified
- 2026-10-28T02:30:49Z
- Severity
-
- 2.1 (Low) CVSS_V4 - 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 CVSS Calculator
- Summary
- punchin-email: Operator inbox (FORWARD_TO) disclosed to correspondents on reply — Cloudflare forward() drops the relay Reply-To
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-200", "CWE-201" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54649.json" }- References
-
- https://github.com/PunchIn-App/punchin-email/releases/tag/v1.5.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54649.json
- https://github.com/PunchIn-App/punchin-email/security/advisories/GHSA-2ph7-69xm-hmwv
- https://nvd.nist.gov/vuln/detail/CVE-2026-54649
- https://github.com/PunchIn-App/punchin-email/commit/593685ffc0b8eb3949a4838e7bfe1e97b953d084
- https://github.com/PunchIn-App/punchin-email/pull/66
Affected packages
Git / github.com/punchin-app/punchin-email
Affected ranges
- Type
- GIT
- Repo
- https://github.com/punchin-app/punchin-email
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "1.5.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "593685ffc0b8eb3949a4838e7bfe1e97b953d084" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v1.5.0", "range": [ { "fixed": "593685ffc0b8eb3949a4838e7bfe1e97b953d084" } ], "source": "REFERENCES_TAG" }, { "range": [ { "introduced": "0" }, { "fixed": "1.5.0" } ], "source": "DESCRIPTION" } ] }