CVE-2026-23919 | Zabbix up to 6.0.40/7.0.18/7.2.12/7.4.2 wrong session (EUVD-2026-14950)

VDB-352855 · CVE-2026-23919 · EUVD-2026-14950 ZABBIX UP TO 6.0.40/7.0.18/7.2.12/7.4.2 WRONG SESSION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.3 $0-$5k 3.94 Summaryinfo A vulnerability classified as problematic has been found in Zabbix up to 6.0.40/7.0.18/7.2.12/7.4.2. This affects an unknown function. This manipulation causes wrong session. This vulnerability is registered as CVE-2026-23919. The attack requires access to the local network. No exploit is available. Detailsinfo A vulnerability classified as problematic was found in Zabbix up to 6.0.40/7.0.18/7.2.12/7.4.2. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a wrong session vulnerability. The CWE definition for the vulnerability is CWE-488. The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: For performance reasons Zabbix Server/Proxy reuses JavaScript (Duktape) contexts (used in script items, JavaScript reprocessing, Webhooks). This can lead to confidentiality loss where a regular (non-super) Zabbix administrator leaks data for hosts they do not have access to. A fix has been released that makes the built in Zabbix JavaScript objects read-only, but please be advised that usage of global JavaScript variables is not recommended because their content could be leaked. More information in Zabbix documentation. It is possible to read the advisory at support.zabbix.com. This vulnerability is known as CVE-2026-23919 since 01/19/2026. The exploitation appears to be easy. Access to the local network is required for this attack to succeed. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-14950). Productinfo Type Network Management Software Name Zabbix Version 6.0.0 6.0.1 6.0.2 6.0.3 6.0.4 6.0.5 6.0.6 6.0.7 6.0.8 6.0.9 6.0.10 6.0.11 6.0.12 6.0.13 6.0.14 6.0.15 6.0.16 6.0.17 6.0.18 6.0.19 6.0.20 6.0.21 6.0.22 6.0.23 6.0.24 6.0.25 6.0.26 6.0.27 6.0.28 6.0.29 6.0.30 6.0.31 6.0.32 6.0.33 6.0.34 6.0.35 6.0.36 6.0.37 6.0.38 6.0.39 6.0.40 7.0.0 7.0.1 7.0.2 7.0.3 7.0.4 7.0.5 7.0.6 7.0.7 7.0.8 7.0.9 7.0.10 7.0.11 7.0.12 7.0.13 7.0.14 7.0.15 7.0.16 7.0.17 7.0.18 7.2.0 7.2.1 7.2.2 7.2.3 7.2.4 7.2.5 7.2.6 7.2.7 7.2.8 7.2.9 7.2.10 7.2.11 7.2.12 7.4.0 7.4.1 7.4.2 License open-source 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: 4.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.3 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: Wrong session CWE: CWE-488 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Partially 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 01/19/2026 CVE reserved 03/24/2026 +64 days Advisory disclosed 03/24/2026 +0 days VulDB entry created 03/24/2026 +0 days VulDB entry last update Sourcesinfo Advisory: support.zabbix.com Status: Confirmed CVE: CVE-2026-23919 (🔒) GCVE (CVE): GCVE-0-2026-23919 GCVE (VulDB): GCVE-100-352855 EUVD: 🔒 Entryinfo Created: 03/24/2026 20:55 Updated: 03/24/2026 21:44 Changes: 03/24/2026 20:55 (63), 03/24/2026 21:44 (1) Complete: 🔍 Cache ID: 99:4CB:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸