CVE-2026-34719
SSRF in Zammad webhook handling could leak cloud metadata.
Is CVE-2026-34719 being exploited?
Not confirmed. CVE-2026-34719 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.24% probability of exploitation in the next 30 days.
How severe is CVE-2026-34719?
CVE-2026-34719 is rated High with a CVSS score of 8.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-34719?
Yes. A fix has been recorded for CVE-2026-34719. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-34719 affect?
CVE-2026-34719 affects Zammad web-based helpdesk (versions <7.0.1 and <6.5.4). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-34719?
Upgrade to 7.0.1 or 6.5.4+.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
SSRF via webhook endpoints can access cloud/provider metadata and potentially internal resources.
Patch when possible
- affected< 6.5.4
- affected>= 7.0.0-alpha and < 7.0.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.