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CVE-2026-102490

Zammad GmbH Zammad Improper Privilege Management

7.8 HIGHActively exploited (CISA KEV)EPSS 0.55%
  1. Published30 Sept 2026
  2. Added to CISA KEV2 Oct 2026
  3. Remediation due5 Oct 2026
Actively exploited (CISA KEV)

Zammad GmbH Zammad contains an improper privilege management vulnerability that can allow the local zammad user to escalate privileges to root. This vulnerability can be chained with CVE-2026-102489.

Added to KEV: 2 Oct 2026Federal remediation due: 5 Oct 2026

Description

Zammad packages built with packager.io (DEB and RPM) could have allowed a local attacker who already had file system write privileges as the unprivileged zammad service account to escalate to full root privileges on the host. Service processes began running as root and executed files that were owned and writable by the zammad account before dropping their identity to that account. An attacker holding that foothold could have escalated within seconds, because the affected services were restarted automatically whenever they stopped; no administrator interaction was required. Only installations from the DEB and RPM packages were affected — installations from source or the official container images were not. All released packaged versions were affected.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Zammad< 7.2.2

Remediation

Fixed in
Zammad≥ 7.2.2

References

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Frequently asked

Is CVE-2026-102490 being actively exploited?

Yes. CVE-2026-102490 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2 Oct 2026.

How severe is CVE-2026-102490?

CVE-2026-102490 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 0.55% probability of exploitation.

Which products are affected by CVE-2026-102490?

Affected products include Zammad.

How do I fix CVE-2026-102490?

Upgrade affected software to a fixed version, for example Zammad 7.2.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-102490 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.