Vendor
Zammad vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 44 vulnerabilities in Zammad: 0 in the last 7 days and 33 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2026-102345, was published on 4 November 2026. 1 vulnerability in the last four weeks, down 97% on the four before (32). 0 critical against 2, 0 exploited in the wild against 2. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 33
- Critical, all time
- 2
- Exploited in the wild
- 2
About Zammad
Zammad is a German software company specializing in open-source customer support and ticketing systems.
Zammad technologies
- Zammad44
Latest Zammad vulnerabilities
- CVE-2026-102345: Zammad stored cross-site scripting in ticket article renderinginfo
- CVE-2026-102490: Zammad privilege escalation to rootcriticalexploited in the wildEPSS 0.3%
- CVE-2026-102489: Zammad session hijack leading to remote code executioncriticalexploited in the wildEPSS 0.6%
- CVE-2026-84465: Zammad S/MIME signature verification bypass allows sender impersonationinfo
- CVE-2026-84464: Zammad unauthorized data access in External Data Sourceinfo
- CVE-2026-84463: Zammad HTML injection in Knowledge Base video widgetinfo
- CVE-2026-84461: Zammad missing rate limiting in two-factor logininfo
- CVE-2026-84460: Zammad information disclosure via tag enumerationinfo
- CVE-2026-84458: Zammad account takeover via unverified email matching in SSO auto-linkinfo
- CVE-2026-63216: Zammad stored XSS in option labels configuration dialoginfo
- CVE-2026-63208: Zammad OAuth token exposure in Microsoft Graph error logsinfo
- CVE-2026-63207: Zammad sensitive information exposure in integration APIinfo
- CVE-2026-63206: Zammad HTML sanitizer bypass via shortened URL schemeinfo
- CVE-2026-63205: Zammad authorization bypass via email signature attachmentsinfo
- CVE-2026-63204: Zammad information disclosure in AI ticket summarize endpointinfo
- CVE-2026-63006: Zammad HTML sanitizer path traversal in image URLsinfo
- CVE-2026-61855: Zammad invalid PGP signature verification on inbound emailinfo
- CVE-2026-84462: Zammad AI Agent template sanitizer bypass in ERB configurationinfo
- CVE-2026-65828: Zammad attachment upload deletion bypass in legacy endpointinfo
- CVE-2026-61525: Zammad path traversal in session managementinfo
- CVE-2026-56735: Zammad HTML sanitizer bypass via srcset attributeinfo
- CVE-2026-56734: Zammad SSRF in federated authentication profile image fetchinfo
- CVE-2026-56733: Zammad authorization bypass in token-based access controlinfo
- CVE-2026-56732: Zammad HTML sanitization session terminationinfo
- CVE-2026-56731: Zammad cross-site scripting in ticket creationinfo
Most severe Zammad vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-102489: Zammad session hijack leading to remote code executioncriticalexploited in the wildEPSS 0.6%
- CVE-2026-102490: Zammad privilege escalation to rootcriticalexploited in the wildEPSS 0.3%
- CVE-2026-34723: Zammad improper access control in getting_started_controllerhighCVSS 7.5EPSS 0.4%
- CVE-2026-34724: Zammad server-side template injection in AI AgenthighCVSS 7.2EPSS 0.3%
- CVE-2026-34721: Zammad CSRF in OAuth callback endpointsmediumCVSS 6.5EPSS 0.1%
- CVE-2026-34718: Zammad HTML sanitizer XSS in ticket articlesmediumCVSS 6.1EPSS 0.1%
- CVE-2026-34248: Zammad improper access control in ticket detail viewmediumCVSS 5.7EPSS 0.2%
- CVE-2026-34719: Zammad SSRF in webhook modelmediumCVSS 4.3EPSS 0.2%
- CVE-2026-34837: Zammad missing authorization in AI assistance text toolsmediumCVSS 4.3EPSS 0.2%
- CVE-2026-34782: Zammad missing authorization in AI assistance text toolsmediumCVSS 4.3EPSS 0.2%
Vulnerabilities per week
1 vulnerability in the last four weeks, down 97% on the four before (32). 0 critical against 2, 0 exploited in the wild against 2. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 30 | 0 | |
| 28 Sep 2026 | 2 | 2 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 1 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Zammad vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/zammad)<a href="https://junglewise.ai/threats/vendors/zammad"><img src="https://junglewise.ai/threats/vendors/zammad/badge.svg" alt="Zammad vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/zammad.json, and this page as text at https://junglewise.ai/threats/vendors/zammad.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Zammad vulnerabilities", https://junglewise.ai/threats/vendors/zammad, 12 November 2026.