CVE-2026-15389 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. DescriptionA vulnerability relating to insufficient access control has been identified in the session management of the Sesame Time web application and its REST v3 API. The flaw lies in the fact that the system uses the session identifier (USID) as the sole validation mechanism, without verifying whether that identifier legitimately belongs to the user making the request. As a result, an attacker who obtains a valid USID can impersonate a victim’s session and access their confidential information, including emails, user IDs, roles and corporate data. This vulnerability is exacerbated by poor session lifecycle management: new logins generate additional USIDs without revoking the previous ones, allowing multiple active sessions to coexist and thereby expanding the attack surface. Metrics
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Weakness Enumeration
Quick InfoCVE Dictionary Entry:CVE-2026-15389 NVD Published Date: 07/14/2026 NVD Last Modified: 07/14/2026 Source: Spanish National Cybersecurity Institute, S.A. (INCIBE) |
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