CVE-2026-102490

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

Published Sep 30, 2026 CVSS 4.0 · 9.4 Critical EPSS 10.9% KEV · Listed
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:zammad:zammad:7.1.0:alpha:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Description All versions of Zammad including the latest alpha enable the local zammad user to escalate privileges to root. 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.
Title Undisclosed LPE in Zammad v1.5.0 to v7.1.0-alpha Local privilege escalation in Zammad v1.5.0 to v7.2.2 installed via DEB or RPM package
References
Type Values Removed Values Added
First Time appeared Docker
Docker docker
Linux
Linux linux Kernel
CPEs cpe:2.3:a:docker:docker:-:*:*:*:*:*:*:*
cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*
cpe:2.3:a:zammad:zammad:7.1.0:alpha:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Vendors & Products Docker
Docker docker
Linux
Linux linux Kernel
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-250
CWE-285
Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-10-02T00:00:00+00:00', 'dueDate': '2026-10-05T00:00:00+00:00'}

Type Values Removed Values Added
Weaknesses CWE-269
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Zammad
Zammad zammad
Vendors & Products Zammad
Zammad zammad
Type Values Removed Values Added
Weaknesses CWE-250
CWE-285
Type Values Removed Values Added
Description All versions of Zammad including the latest alpha enable the local zammad user to escalate privileges to root.
Title Undisclosed LPE in Zammad v1.5.0 to v7.1.0-alpha
References
Metrics cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/V:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
DIVD
Published
Updated
Oct 8, 2026, 7:55 PM
Reserved
Sep 29, 2026, 9:46 AM
Status
Analyzed
Published
Sep 30, 2026, 5:16 PM
Modified
Oct 9, 2026, 2:21 PM