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PatchSiren cyber security CVE debrief

CVE-2026-102490 Zammad GmbH CVE debrief

CVE-2026-102490 is an Improper Privilege Management Vulnerability in Zammad GmbH Zammad. The vulnerability is listed in the CISA Known Exploited Vulnerabilities catalog and is known to be actively exploited. System administrators and security teams should urgently assess exposure and apply vendor-supplied mitigations and CISA guidance to prevent potential privilege escalation and unauthorized access. Affected product deployments should be identified, and owners assigned for follow-up. Official advisories and CVE records should be reviewed to validate affected scope, severity, and vendor guidance. Compensating controls should be reviewed for exposed systems while remediation is in a

Vendor
Zammad GmbH
Product
Zammad
CVSS
HIGH 8.5
CISA KEV
Listed
Original CVE published
2026-10-02
Original CVE updated
2026-10-02
Advisory published
2026-10-02
Advisory updated
2026-10-02

Who should care

System administrators and security teams responsible for Zammad GmbH Zammad deployments should assess exposure and apply mitigations according to vendor instructions and CISA guidance.

Why it matters

CVE-2026-102490 is an Improper Privilege Management Vulnerability in Zammad GmbH Zammad. Active exploitation has been reported by CISA, indicating a high risk to affected systems. System administrators and security teams should urgently assess exposure and apply vendor-supplied mitigations and CISA guidance to prevent potential privilege escalation and unauthorized access.

  • Potential privilege escalation
  • Possible unauthorized access to sensitive data
  • Risk of lateral movement within the network
  • Need for urgent patching and mitigation

Technical summary

The Zammad GmbH Zammad product contains an Improper Privilege Management Vulnerability. This vulnerability is listed in the CISA Known Exploited Vulnerabilities catalog and is known to be actively exploited. The vulnerability allows for potential privilege escalation and unauthorized access. Affected systems should be identified, and mitigations applied according to vendor instructions and CISA guidance. The vulnerability is considered high priority due to active exploitation, and urgent patching and mitigation are required.

Defensive priority

High priority to apply mitigations according to vendor instructions and CISA guidance due to active exploitation.

Recommended defensive actions

  • Apply mitigations according to vendor instructions
  • Follow CISA’s BOD 26-04 guidance
  • Ensure compliance with CISA’s Forensics Triage Requirements

Evidence notes

Evidence from CISA Known Exploited Vulnerabilities catalog and vendor sources indicates active exploitation of this Improper Privilege Management Vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-102490 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-102490

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-102490 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-102490

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.