Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-102490

CVE-2026-102490CRITICAL

Zammad GmbH Zammad — Local privilege escalation in Zammad v1.5.0 to v7.2.2 installed via DEB or RPM package

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   P   H   H   H    9.4   .0055   44.8   YES

AFFECTED
  Product  Versions  Fixed
  Zammad   1.5.0 –   7.2.2

TIMELINE
  Sep 29  Reserved by DIVD
  Sep 30  Published (CNA: DIVD)
  Oct 2   ADDED TO KEV — CVE-2026-102490 (Zammad GmbH Zammad). Remediation due October 5, 2026.
  Oct 6   DUE DATE PASSED — CVE-2026-102490 (Zammad GmbH Zammad). CISA remediation deadline was October 5, 2026; still in catalog.
  Oct 8   PATCH SHIPPED — CVE-2026-102490 (Zammad GmbH Zammad). Fixed in Zammad 7.2.2.

CWE-269 · CNA: DIVD · CVSS v4.0 · 6 references · NVD status: Analyzed · KEV due October 5, 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.

Lifecycle

Complete event history — 5 events, chronological
Date	Event	Detail
September 29, 2026	Reserved	Reserved by DIVD
September 30, 2026	Published	Published (CNA: DIVD)
October 2, 2026	KEV ADDED	ADDED TO KEV — CVE-2026-102490 (Zammad GmbH Zammad). Remediation due October 5, 2026.
October 6, 2026	DUE DATE PASSED	DUE DATE PASSED — CVE-2026-102490 (Zammad GmbH Zammad). CISA remediation deadline was October 5, 2026; still in catalog.
October 8, 2026	PATCH SHIPPED	PATCH SHIPPED — CVE-2026-102490 (Zammad GmbH Zammad). Fixed in Zammad 7.2.2.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Zammad GmbH	Zammad	—	1.5.0	7.2.2

Weaknesses

CWE-269

References (6)

https://community.zammad.org/t/take-care-local-privilege-escalation-cve-2026-102490-is-reported-as-being-actively-exploited/21297/2 [Vendor Advisory]
https://csirt.divd.nl/CVE-2026-102490 [Third Party Advisory]
https://csirt.divd.nl/DIVD-2026-00015 [Third Party Advisory]
https://github.com/zammad/zammad/security/advisories/GHSA-p97w-927q-8vxq [Vendor Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102490 [US Government Resource]
https://zammad.com/en/advisories/cve-2026-102489-cve-2026-102490 [Vendor Advisory]

Authoritative record: CVE-2026-102490 at cve.org

Vendors: zammad

Weaknesses: CWE-269

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-102490 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.