CVE-2026-23933

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Source
https://cve.org/CVERecord?id=CVE-2026-23933
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23933.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23933
Downstream
Published
2026-08-18T13:17:21Z
Modified
2026-09-25T08:13:32Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the only known exploitation scenario is for deployments that utilize both - SAML authentication and guest users. In such cases the key can be used to forge valid session cookies, potentially leading to unauthorized access. For other Zabbix deployments this does not have a known impact.

References

Affected packages

Git / github.com/zabbix/zabbix

Affected ranges

Type
GIT
Repo
https://github.com/zabbix/zabbix
Events
Introduced
372a4e93c48ecd25aa666949a055a02369031861
Fixed
a6a1f80f9dd9c9461513853ecabc5b1a6c7dd521
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "7.4.0"
        },
        {
            "fixed":  "7.4.11"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

7.*
7.4.0
7.4.1
7.4.10
7.4.10rc1
7.4.11rc1
7.4.11rc2
7.4.1rc1
7.4.2
7.4.2rc1
7.4.2rc2
7.4.3
7.4.3rc1
7.4.4
7.4.4rc1
7.4.5
7.4.6
7.4.6rc1
7.4.6rc2
7.4.7
7.4.7rc1
7.4.7rc2
7.4.7rc3
7.4.8
7.4.8rc1
7.4.8rc2
7.4.8rc3
7.4.9
7.4.9rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23933.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "80225613835803133910910126596852952088",
                "230058783349080063223687654489728332059",
                "177878195683979894346014332267148188511",
                "188349145695577399953969866264285031573",
                "329342636515519127775980169026149266987",
                "58272670197979715614362102333779585045"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-23933-a8156f50",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/zabbix/zabbix/commit/a6a1f80f9dd9c9461513853ecabc5b1a6c7dd521",
        "target":  {
            "file":  "src/zabbix_java/src/com/zabbix/gateway/GeneralInformation.java"
        }
    }
]
vanir_signatures_modified 
"2026-09-25T08:13:32Z"