=====================================================================================OSSA-2026-043: Zaqar WebSocket project substitution allows cross-project queue access
=====================================================================================
:Date: October 07, 2026 :CVE: CVE-2026-107363 Affects ~~~~~~~ - Zaqar: >=1.0.0 <20.1.3, >=21.0.0 <21.0.3, >=22.0.0 <22.0.3, ==23.0.0 Description ~~~~~~~~~~~ Chen YuXiang from the Institute of Computing Technology, Chinese Academy of Sciences reported a vulnerability in Zaqar's WebSocket transport. An authenticated remote attacker who knows a target project's UUID may substitute it in subsequent WebSocket frames to enumerate, inspect, create, or delete queues belonging to that project. This may result in unauthorized disclosure, modification, or loss of queue data. Only deployments using the WebSocket transport with Keystone authentication are affected. Errata ~~~~~~ CVE-2026-107363 has been assigned for this vulnerability. Patches ~~~~~~~ - https://review.opendev.org/1009254 (2025.1/epoxy) - https://review.opendev.org/1009253 (2025.2/flamingo) - https://review.opendev.org/1009252 (2026.1/gazpacho) - https://review.opendev.org/1009251 (2026.2/hibiscus) - https://review.opendev.org/1009250 (2027.1/indri (development)) Credits ~~~~~~~- Chen YuXiang from Institute of Computing Technology, Chinese Academy of Sciences (CVE-2026-107363)
References ~~~~~~~~~~ - https://launchpad.net/bugs/2161402 - http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-107363 OSSA History ~~~~~~~~~~~~ - 2026-10-07 - Errata 1 - 2026-10-07 - Original Version -- Goutham Pacha Ravi OpenStack Vulnerability Management Team https://security.openstack.org/vmt.html On 10/7/26 10:59 AM, Goutham Pacha Ravi wrote:
=====================================================================================OSSA-2026-043: Zaqar WebSocket project substitution allows cross-project queue access===================================================================================== :Date: October 07, 2026 :CVE: CVE-2026-pending Affects ~~~~~~~ - Zaqar: >=1.0.0 <20.1.3, >=21.0.0 <21.0.3, >=22.0.0 <22.0.3, ==23.0.0 Description ~~~~~~~~~~~ Chen YuXiang from the Institute of Computing Technology, Chinese Academy of Sciences reported a vulnerability in Zaqar's WebSocket transport. An authenticated remote attacker who knows a target project's UUID may substitute it in subsequent WebSocket frames to enumerate, inspect, create, or delete queues belonging to that project. This may result in unauthorized disclosure, modification, or loss of queue data. Only deployments using the WebSocket transport with Keystone authentication are affected. Patches ~~~~~~~ - https://review.opendev.org/1009254 (2025.1/epoxy) - https://review.opendev.org/1009253 (2025.2/flamingo) - https://review.opendev.org/1009252 (2026.1/gazpacho) - https://review.opendev.org/1009251 (2026.2/hibiscus) - https://review.opendev.org/1009250 (2027.1/indri (development)) Credits ~~~~~~~- Chen YuXiang from Institute of Computing Technology, Chinese Academy of SciencesReferences ~~~~~~~~~~ - https://launchpad.net/bugs/2161402 - http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-pending Notes ~~~~~ - A CVE identifier was requested from MITRE for this vulnerability on 2026-10-06. The CVE will be added to this advisory by errata once assigned. -- Goutham Pacha Ravi OpenStack Vulnerability Management Team https://security.openstack.org/vmt.html
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