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    2 vulnerabilities by PunchIn-App

    CVE-2026-54649 (GCVE-0-2026-54649)

    Vulnerability from nvd – Published: 2026-09-17 18:29 – Updated: 2026-09-24 20:55
    VLAI
    Title
    punchin-email: Operator inbox (FORWARD_TO) disclosed to correspondents on reply — Cloudflare forward() drops the relay Reply-To
    Summary
    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.
    Severity
    2.1 (Low)
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-24 20:39 UTC
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    • CWE-201 - Insertion of Sensitive Information Into Sent Data
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-54649 (GCVE-0-2026-54649)

    Vulnerability from cvelistv5 – Published: 2026-09-17 18:29 – Updated: 2026-09-24 20:55
    VLAI
    Title
    punchin-email: Operator inbox (FORWARD_TO) disclosed to correspondents on reply — Cloudflare forward() drops the relay Reply-To
    Summary
    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.
    Severity
    2.1 (Low)
    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
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-24 20:39 UTC
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    • CWE-201 - Insertion of Sensitive Information Into Sent Data
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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