CVE-2026-34721: Zammad has Cross-site request forgery (CSRF) in OAuth callback endpoints
Affected: zammad · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the OAuth callback endpoints for Microsoft, Google, and Facebook external credentials do not validate a CSRF state parameter. This vulnerability is fixed in 7.0.1 and 6.5.4.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- zammad · zammad< 6.5.4; >= 7.0.0-alpha, < 7.0.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Cross-Site Request Forgery
- Vendor
- zammad
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-34721 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.