CVE-2026-22257
XSS in Salvo pre-0.88.1 due to unsanitized file/folder names in public file view.
Is CVE-2026-22257 being exploited?
Not confirmed. CVE-2026-22257 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 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2026-22257?
CVE-2026-22257 is rated High with a CVSS score of 8.8. 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-2026-22257?
Yes. A fix has been recorded for CVE-2026-22257. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-22257 affect?
CVE-2026-22257 affects Salvo web framework (Rust) <= 0.88.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-22257?
Upgrade to 0.88.1+ immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
XSS via crafted filenames in public file listings; could enable script injection, cookie/session hijack, or UI defacement.
Patch when possible
- affected< 0.88.1
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.