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    CVE-2026-23935

    A Zabbix administrator is able to read out of bounds memory by utilizing a flaw in script item/preprocessing (JavaScript) HttpRequest logic, leading to potential confidentiality loss.

    Published:Aug 18, 2026
    Last Modified:Aug 18, 2026
    EPS:Aug 18, 2026
    EPSS Score:
    CVSS Score:6.8

    Affected Products

    Vendor
    Zabbix
    Product
    Zabbix

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-59781 (CVSS 5.4) — When Zabbix Agent was installed on Windows into a custom installation directory, the installer did not verify …
    CVE-2026-23938 (CVSS 2.1) — An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted prepro…
    CVE-2026-23937 (CVSS 6) — The Zabbix API host.get action can be exploited by authenticated users to extract a host's PSK key leading to …
    CVE-2026-23934 (CVSS 5.1) — An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specific…
    CVE-2026-23933 (CVSS 7.7) — In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the dat…
    CVE-2026-23931 (CVSS 5.3) — The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user ma…
    CVE-2026-23930 (CVSS 5.3) — An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specif…
    CVE-2026-23929 (CVSS 8.5) — Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parame…
    CVE-2026-1199 (CVSS 6.9) — Zabbix API and Frontend login lockout mechanism has a flaw where several unsuccessful login requests are not p…
    CVE-2026-23922 (CVSS 2.1) — The email media OAuth field 'Client secret' cannot be read after saving, but a Super Admin can leak it by sett…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High