CVE-2026-34837 | Zammad up to 7.0.0 REST Endpoint :id authorization

VDB-356365 · CVE-2026-34837 · GCVE-0-2026-34837 ZAMMAD UP TO 7.0.0 REST ENDPOINT :ID AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.1 $0-$5k 0.65 Summaryinfo A vulnerability identified as problematic has been detected in Zammad up to 7.0.0. This impacts an unknown function of the file /api/v1/ai_assistance/text_tools/:id of the component REST Endpoint. This manipulation causes authorization. This vulnerability is registered as CVE-2026-34837. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component. Detailsinfo A vulnerability classified as problematic was found in Zammad up to 7.0.0. Affected by this vulnerability is some unknown functionality of the file /api/v1/ai_assistance/text_tools/:id of the component REST Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality. The summary by CVE is: Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, he REST endpoint POST /api/v1/ai_assistance/text_tools/:id contains an authorization failure. Context data (e.g., a group or organization) supplied to be used in the AI prompt were not checked if they are accessible for the current user. This leads to having data present in the AI prompt that were not authorized before being used. A user needs to have ticket.agent permission to be able to use the provided context data. This vulnerability is fixed in 7.0.1. The advisory is shared at github.com. This vulnerability is known as CVE-2026-34837 since 03/30/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. Upgrading to version 7.0.1 eliminates this vulnerability. Productinfo Name Zammad Version 7.0 License open-source Website Product: https://github.com/zammad/zammad/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.1 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authorization CWE: CWE-862 / CWE-863 / CWE-285 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Zammad 7.0.1 Timelineinfo 03/30/2026 CVE reserved 04/08/2026 +9 days Advisory disclosed 04/08/2026 +0 days VulDB entry created 04/08/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-34837 (🔒) GCVE (CVE): GCVE-0-2026-34837 GCVE (VulDB): GCVE-100-356365 Entryinfo Created: 04/08/2026 21:10 Changes: 04/08/2026 21:10 (66) Complete: 🔍 Cache ID: 99:B44:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸