CVE-2026-3418
Authenticated publisher can upload files to arbitrary server paths, enabling potential RCE.
Is CVE-2026-3418 being exploited?
Not confirmed. CVE-2026-3418 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 0.57% probability of exploitation in the next 30 days.
How severe is CVE-2026-3418?
CVE-2026-3418 is rated Critical with a CVSS score of 9.1. 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-2026-3418?
Not known from our data. No patch reference has been recorded for CVE-2026-3418, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-3418 affect?
CVE-2026-3418 affects System REST API file-upload endpoints, Web application servers handling uploads, Servers with publisher/admin roles enabled. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-3418?
Disable/restrict uploads, revoke publisher rights, and apply vendor patch ASAP.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated publisher can write files to server-accessible locations, potentially leading to remote code execution and full system compromise.
Immediate action required
- affected>= 4.5.0 and < 4.5.0.53
- affected>= 4.6.0 and < 4.6.0.17
- affected>= 4.4.0 and < 4.4.0.67
- affected>= 4.5.0 and < 4.5.0.52
- affected>= 4.6.0 and < 4.6.0.16
- affected>= 9.30.67 and < 9.30.67.156
- affected>= 9.31.86 and < 9.31.86.141
- affected>= 9.32.147 and < 9.32.147.44
- affected>= 9.30.67 and < 9.30.67.156
- affected>= 9.30.67 and < 9.30.67.156
- affected>= 9.31.86 and < 9.31.86.141
- affected>= 9.32.147 and < 9.32.147.44
- affected>= 4.5.0 and < 4.5.0.51
- affected>= 4.6.0 and < 4.6.0.16
- affected>= 4.5.0 and < 4.5.0.52
- affected>= 4.6.0 and < 4.6.0.16
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.