CVE-2026-102490
Local privilege escalation in Zammad v1.5.0 to v7.2.2 installed via DEB or RPM package
- Published
- Updated
- Reserved
- Assigned by
- DIVD
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Zammad GmbH Zammad Improper Privilege Management Vulnerability.
- Added
- 2 Oct 2026
- Fix due (US federal)
- 5 Oct 2026
- Used by ransomware
- Not known
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| DIVDCNA (assigner) | 4.0 | High8.5 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/AU:Y/V:D |
| DIVDCNA (assigner) | 4.0 | Critical9.4 | 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 |
| NVDNVD · Analyzed | 4.0 | Critical9.4 | 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:C/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 10.9% · top 4.1% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.5.
Weakness
Affected products
- affected 1.5.0 – < 7.2.2
- unknown < 1.5.0
- unaffected 7.2.2 – < *
References (5)
- https://csirt.divd.nl/DIVD-2026-00015 (opens in a new tab)third-party-advisory
- https://csirt.divd.nl/CVE-2026-102490 (opens in a new tab)third-party-advisory
- https://zammad.com/en/advisories/cve-2026-102489-cve-2026-102490 (opens in a new tab)vendor-advisory
- https://github.com/zammad/zammad/security/advisories/GHSA-p97w-927q-8vxq (opens in a new tab)vendor-advisorytechnical-description
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102490 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-102490)Record last updated .