CVE-2026-34428
SSRF in Vvveb editor enables authenticated users to fetch local or internal network resources.
Is CVE-2026-34428 being exploited?
Not confirmed. CVE-2026-34428 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 0.26% probability of exploitation in the next 30 days.
How severe is CVE-2026-34428?
CVE-2026-34428 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-2026-34428?
Yes. A fix has been recorded for CVE-2026-34428. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-34428 affect?
CVE-2026-34428 affects Vvveb editor (version < 1.0.8.1). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-34428?
Patch to 1.0.8.1+, validate URLs; block file:// and internal-host access
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated SSRF via oEmbedProxy; read server files (file://) and probe internal hosts (http://) with responses returned to caller.
Immediate action required
- affected< 1.0.8.1
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.