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CVE-2026-102490

7.8 · HIGHActively Exploited

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…

Published Sep 30, 2026zammadCWE-269EPSS 10.94%

Overview

CVE-2026-102490 is a high-severity vulnerability affecting zammad zammad. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from zammad. Update zammad to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
zammadzammad>= 0, < 7.2.2Affected

References

Refcsirt.divd.nl/CVE-2026-102490Refcsirt.divd.nl/DIVD-2026-00015GitHubgithub.com/zammad/zammad/security/advisories/GHSA-p97w-927q-8vxqRefzammad.com/en/advisories/cve-2026-102489-cve-2026-102490CISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102490

How CyberStrike helps

Frequently asked questions

What is CVE-2026-102490?

CVE-2026-102490 is a high-severity vulnerability affecting zammad zammad. It was published on September 30, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2026-102490?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-102490?

Check the references section for vendor advisories and patches from zammad. Update zammad to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-102490?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-102490 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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