com.ongres.scram/scram-client: com.ongres.scram/scram-common: SCRAM Libraries: Authentication downgrade via TLS man-in-the-middle attack

A flaw was found in the SCRAM Salted Challenge Response Authentication Mechanism client and common libraries. An attacker performing a man-in-the-middle MITM attack on a Transport Layer Security TLS connection can silently downgrade the authentication process. This vulnerability allows the attack...

org.postgresql/postgresql: com.ongres.scram/scram-client: pgjdbc: Man-in-the-middle protection bypass via SCRAM-SHA-256-PLUS downgrade

A flaw was found in pgjdbc, an open-source PostgreSQL JDBC Driver. A remote attacker who can intercept a TLS Transport Layer Security connection can silently downgrade connections configured to require channel binding from SCRAM-SHA-256-PLUS to plain SCRAM-SHA-256. This downgrade bypasses the...

com.ongres.scram/scram-client: com.ongres.scram/scram-common: SCRAM Libraries: Authentication downgrade via TLS man-in-the-middle attack

A flaw was found in the SCRAM Salted Challenge Response Authentication Mechanism client and common libraries. An attacker performing a man-in-the-middle MITM attack on a Transport Layer Security TLS connection can silently downgrade the authentication process. This vulnerability allows the attack...

org.postgresql/postgresql: com.ongres.scram/scram-client: pgjdbc: Man-in-the-middle protection bypass via SCRAM-SHA-256-PLUS downgrade

A flaw was found in pgjdbc, an open-source PostgreSQL JDBC Driver. A remote attacker who can intercept a TLS Transport Layer Security connection can silently downgrade connections configured to require channel binding from SCRAM-SHA-256-PLUS to plain SCRAM-SHA-256. This downgrade bypasses the...

CVE-2026-48076

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. The new-client booking flow in versions 1.0.1 and prior consists of three calls: bootstrap-challenge returns a 16-bit PoW challenge with difficulty=4 leading hex zeroes, bootstrap-verify...

CVE-2026-48076 OpenReception's bootstrap booking flow allows unauthenticated booking on isPublic=false channels

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. The new-client booking flow in versions 1.0.1 and prior consists of three calls: bootstrap-challenge returns a 16-bit PoW challenge with difficulty=4 leading hex zeroes, bootstrap-verify...

CVE-2026-48076 OpenReception's bootstrap booking flow allows unauthenticated booking on isPublic=false channels

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. The new-client booking flow in versions 1.0.1 and prior consists of three calls: bootstrap-challenge returns a 16-bit PoW challenge with difficulty=4 leading hex zeroes, bootstrap-verify...

CVE-2026-48076

OpenReception’s bootstrap booking flow (versions ≤1.0.1) is vulnerable to an unauthenticated booking against private channels due to a missing channel binding in the booking token. The 3-step flow: bootstrap-challenge (PoW), bootstrap-verify (issues a booking access token), and create-new-client ...

MITM (Man-in-the-Middle) org.postgresql:postgresql Dependency in Jira Software Data Center

This High severity MITM Man-in-the-Middle vulnerability was introduced in versions 9.12.37, 10.3.23, and 11.3.8 of Jira Software Data Center. This MITM Man-in-the-Middle vulnerability, with a CVSS Score of 8.2 and a CVSS Vector of CVSS:4.0/AV:N/AC:H/AT: P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N...

CVE-2026-53712

A flaw was found in the SCRAM Salted Challenge Response Authentication Mechanism client and common libraries. An attacker performing a man-in-the-middle MITM attack on a Transport Layer Security TLS connection can silently downgrade the authentication process. This vulnerability allows the attack...

CVE-2026-42492

Xenstore, to have an up-to-date picture of the entire system, wants to know of domains appearing and disappearing. To make this more robust, a new XENDOMCTLgetdomainstate was introduced. The management of the bitmap underlying that operation is tied into the binding of the VIRQDOMEXC virtual IRQ...

GHSA-73X5-H92W-XC2J Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding

Summary A normal authenticated user can read the content of a message in a private channel they do not belong to. GET /api/v1/channels/id/messages/messageid/thread authorizes the caller against the URL channel, but the underlying thread lookup loads the thread parent by id and returns it without...

EUVD-2026-42630

Open WebUI: Private channel messages can be disclosed through cross-channel thread parentid binding...

MITM (Man-in-the-Middle) org.postgresql:postgresql Dependency in Confluence Data Center

This High severity MITM Man-in-the-Middle vulnerability was introduced in versions 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, and 10.1.0 of Confluence Data Center. This MITM Man-in-the-Middle vulnerability, with a CVSS Score of 8.2 and a CVSS Vector of...

MITM (Man-in-the-Middle) org.postgresql:postgresql Dependency in Bitbucket Data Center

This High severity MITM Man-in-the-Middle vulnerability was introduced in versions 9.2.0, 9.3.0, 9.4.0, 9.5.0, and 9.6.0 of Bitbucket Data Center. This MITM Man-in-the-Middle vulnerability, with a CVSS Score of 8.2 and a CVSS Vector of CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA...

GHSA-J92G-9F8W-J867 PostgreSQL JDBC Driver: Silent channel-binding authentication downgrade via unsupported certificate algorithms

Impact channelBinding=require connections can be silently downgraded from SCRAM-SHA-256-PLUS with channel binding to plain SCRAM-SHA-256 without it, losing the man-in-the-middle protection the setting is meant to guarantee. An attacker who can intercept the TLS connection triggers the downgrade...

EUVD-2026-41903

PostgreSQL JDBC Driver: Silent channel-binding authentication downgrade via unsupported certificate algorithms...

CVE-2026-54291

A flaw was found in pgjdbc, an open-source PostgreSQL JDBC Driver. A remote attacker who can intercept a TLS Transport Layer Security connection can silently downgrade connections configured to require channel binding from SCRAM-SHA-256-PLUS to plain SCRAM-SHA-256. This downgrade bypasses the...

CVE-2026-53712

SCRAM Salted Challenge Response Authentication Mechanism is part of the family of Simple Authentication and Security Layer SASL, RFC 4422 authentication mechanisms. Prior to 3.3, a flaw in com.ongres.scram:scram-client and com.ongres.scram:scram-common allows an attacker capable of a TLS...

CVE-2026-53712 SCRAM: Silent channel-binding authentication downgrade via unsupported certificate algorithms

SCRAM Salted Challenge Response Authentication Mechanism is part of the family of Simple Authentication and Security Layer SASL, RFC 4422 authentication mechanisms. Prior to 3.3, a flaw in com.ongres.scram:scram-client and com.ongres.scram:scram-common allows an attacker capable of a TLS...