https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 05 Nov 2026 11:26:06 +0000 https://db.gcve.eu/vuln/fkie_cve-2026-114478 <p>Insufficient preservation of the original sender in the forwarding of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to have mail they write, naming in its From an address at a domain the server hosts, delivered to other receivers as passing that domain&#39;s DMARC policy. When the server sent on a copy of mail that came from outside - an account&#39;s forward, a mail rule&#39;s forward, a Sieve redirect, a list&#39;s copy, or an alias or list expanding to an outside address - it could give the copy an SMTP identity in the organisation of the domain the copy&#39;s From names, whatever the message&#39;s origin: with the Sender Rewriting Scheme or the rewrite of the envelope sender on forwarding enabled (both off by default), an address at the forwarding domain; for a list, its bounce address; for a message with an empty envelope sender, none, under the server&#39;s own host name; and an envelope sender the message came with at a subdomain of a hosted domain was kept. Where that identity&#39;s SPF record authorises the server, other receivers&#39; SPF check of the copy passed for a domain aligned with the From, and DMARC passed with it, although the message had not passed DMARC when the server received it. Exploitation needs a forward, redirect, alias or list that carries the hosted domain&#39;s mail to an outside address, and one of: SRS or the envelope rewrite enabled; a list whose bounce address is in the domain&#39;s organisation; an envelope sender at a subdomain whose SP…</p> <p>Insufficient preservation of the original sender in the forwarding of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to have mail they write, naming in its From an address at a domain the server hosts, delivered to other receivers as passing that domain&#39;s DMARC policy. When the server sent on a copy of mail that came from outside - an account&#39;s forward, a mail rule&#39;s forward, a Sieve redirect, a list&#39;s copy, or an alias or list expanding to an outside address - it could give the copy an SMTP identity in the organisation of the domain the copy&#39;s From names, whatever the message&#39;s origin: with the Sender Rewriting Scheme or the rewrite of the envelope sender on forwarding enabled (both off by default), an address at the forwarding domain; for a list, its bounce address; for a message with an empty envelope sender, none, under the server&#39;s own host name; and an envelope sender the message came with at a subdomain of a hosted domain was kept. Where that identity&#39;s SPF record authorises the server, other receivers&#39; SPF check of the copy passed for a domain aligned with the From, and DMARC passed with it, although the message had not passed DMARC when the server received it. Exploitation needs a forward, redirect, alias or list that carries the hosted domain&#39;s mail to an outside address, and one of: SRS or the envelope rewrite enabled; a list whose bounce address is in the domain&#39;s organisation; an envelope sender at a subdomain whose SP…</p> https://db.gcve.eu/vuln/fkie_cve-2026-114478 https://db.gcve.eu/vuln/ghsa-w852-m7j4-xm48 <p>Insufficient preservation of the original sender in the forwarding of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to have mail they write, naming in its From an address at a domain the server hosts, delivered to other receivers as passing that domain&#39;s DMARC policy. When the server sent on a copy of mail that came from outside - an account&#39;s forward, a mail rule&#39;s forward, a Sieve redirect, a list&#39;s copy, or an alias or list expanding to an outside address - it could give the copy an SMTP identity in the organisation of the domain the copy&#39;s From names, whatever the message&#39;s origin: with the Sender Rewriting Scheme or the rewrite of the envelope sender on forwarding enabled (both off by default), an address at the forwarding domain; for a list, its bounce address; for a message with an empty envelope sender, none, under the server&#39;s own host name; and an envelope sender the message came with at a subdomain of a hosted domain was kept. Where that identity&#39;s SPF record authorises the server, other receivers&#39; SPF check of the copy passed for a domain aligned with the From, and DMARC passed with it, although the message had not passed DMARC when the server received it. Exploitation needs a forward, redirect, alias or list that carries the hosted domain&#39;s mail to an outside address, and one of: SRS or the envelope rewrite enabled; a list whose bounce address is in the domain&#39;s organisation; an envelope sender at a subdomain whose SP…</p> <p>Insufficient preservation of the original sender in the forwarding of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to have mail they write, naming in its From an address at a domain the server hosts, delivered to other receivers as passing that domain&#39;s DMARC policy. When the server sent on a copy of mail that came from outside - an account&#39;s forward, a mail rule&#39;s forward, a Sieve redirect, a list&#39;s copy, or an alias or list expanding to an outside address - it could give the copy an SMTP identity in the organisation of the domain the copy&#39;s From names, whatever the message&#39;s origin: with the Sender Rewriting Scheme or the rewrite of the envelope sender on forwarding enabled (both off by default), an address at the forwarding domain; for a list, its bounce address; for a message with an empty envelope sender, none, under the server&#39;s own host name; and an envelope sender the message came with at a subdomain of a hosted domain was kept. Where that identity&#39;s SPF record authorises the server, other receivers&#39; SPF check of the copy passed for a domain aligned with the From, and DMARC passed with it, although the message had not passed DMARC when the server received it. Exploitation needs a forward, redirect, alias or list that carries the hosted domain&#39;s mail to an outside address, and one of: SRS or the envelope rewrite enabled; a list whose bounce address is in the domain&#39;s organisation; an envelope sender at a subdomain whose SP…</p> https://db.gcve.eu/vuln/ghsa-w852-m7j4-xm48