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Medium severity6.5NVD Advisory· Published Apr 8, 2026· Updated Apr 17, 2026

CVE-2026-34721

CVE-2026-34721

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Zammad/Zammad3 versions
    cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*range: <6.5.4
    • cpe:2.3:a:zammad:zammad:7.0.0:*:*:*:*:*:*:*
    • (no CPE)range: < 7.0.1, < 6.5.4

Patches

Vulnerability mechanics

References

1

News mentions

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