CVE-2026-73286
Authenticated header spoofing in RustFS allows bypass of identity-based access controls.
Is CVE-2026-73286 being exploited?
Not confirmed. CVE-2026-73286 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-2026-73286?
CVE-2026-73286 is rated High with a CVSS score of 8.1. 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-2026-73286?
Yes. A fix has been recorded for CVE-2026-73286. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-73286 affect?
CVE-2026-73286 affects RustFS < 1.0.0-beta.12, RustFS deployments using header-based identity conditions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-73286?
Upgrade to RustFS 1.0.0-beta.12+ and audit header-to-identity mappings.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attackers can inject request headers to satisfy identity-based policy keys, bypass RBAC, and read/modify object storage data.
Patch when possible
- affected< 1.0.0-beta.12
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.