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OSV
OSV
•added 2026/07/03 7:16 a.m.•14 views

AZL-91842 CVE-2026-8286 affecting package cmake for versions less than 3.30.3-15

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not...

8.1CVSS6.7AI score0.00309EPSS
SaveExploits1References1
OSV
OSV
•added 2026/07/03 7:16 a.m.•18 views

ALPINE-CVE-2026-8286

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not...

8.1CVSS6.7AI score0.00309EPSS
SaveExploits1References1
AlpineLinux
AlpineLinux
•added 2026/07/03 6:14 a.m.•25 views

CVE-2026-8286

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not...

8.1CVSS6.7AI score0.00309EPSS
SaveExploits1References3
attackerkb
attackerkb
•added 2026/07/03 6:14 a.m.•21 views

CVE-2026-8286

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not...

6.7AI score0.00309EPSS
SaveExploits1References4Affected Software1
OSV
OSV
•added 2026/07/03 6:14 a.m.•22 views

CVE-2026-8286 wrong STARTTLS connection reuse

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not...

8.1CVSS6.7AI score0.00309EPSS
SaveExploits1References6
Rapid7 Vulnerability Database (full)
Rapid7 Vulnerability Database (full)
•added 2026/07/03 12:00 a.m.•3 views

CVE-2026-8286: Improper Certificate Validation

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not...

8.1CVSS6.7AI score0.00309EPSS
SaveExploits1References6
RedHat Linux
RedHat Linux
•added 2026/07/02 3:43 p.m.•29 views

curl: curl: Insecure connection establishment due to TLS configuration mismatch

A flaw was found in curl. When a new data transfer attempts to upgrade its connection using STARTTLS, it may incorrectly reuse an existing live connection. This reuse can occur even if the Transport Layer Security TLS configuration of the new transfer does not match the existing connection,...

8.1CVSS6.6AI score0.00309EPSS
SaveExploits1References7
RedHat Linux
RedHat Linux
•added 2026/06/30 7:02 p.m.•22 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 6:42 p.m.•32 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 5:41 p.m.•24 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 5:18 p.m.•23 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 4:32 p.m.•25 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 3:47 p.m.•20 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 3:46 p.m.•27 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 2:25 p.m.•19 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 2:25 p.m.•13 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
RedHat Linux
RedHat Linux
•added 2026/06/30 11:05 a.m.•34 views

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

7.6CVSS6.9AI score0.00312EPSS
SaveExploits0References12
Ubuntu
Ubuntu
•added 2026/06/29 10:42 a.m.•23 views

USN-8478-1: Ruby vulnerabilities

It was discovered that Ruby's Net::IMAP library did not properly verify that TLS encryption was started after issuing a STARTTLS command. A remote attacker could use this to perform a machine-in-the-middle attack and silently bypass TLS encryption. CVE-2026-42246 It was discovered that Ruby's...

9.8CVSS7.5AI score0.00519EPSS
SaveExploits0
UbuntuCve
UbuntuCve
•added 2026/06/26 2:00 p.m.•17 views

CVE-2026-8286

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not...

8.1CVSS5.7AI score0.00309EPSS
SaveExploits1References3
Tenable Nessus
Tenable Nessus
•added 2026/06/26 12:00 a.m.•41 views

Curl 7.30.0 < 8.21.0 Wrong STARTTLS Connection Reuse

The version of curl installed on the remote host is 7.30.0 prior to 8.21.0. It is, therefore, affected by an improper certificate validation vulnerability: - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even thoug...

8.1CVSS5.8AI score0.00309EPSS
SaveExploits1References2
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