CVE-2026-5027
Path traversal in file upload endpoint enables arbitrary file writes.
Is CVE-2026-5027 being exploited?
Not confirmed. CVE-2026-5027 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 36% probability of exploitation in the next 30 days.
How severe is CVE-2026-5027?
CVE-2026-5027 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-2026-5027?
Yes. A fix has been recorded for CVE-2026-5027. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-5027 affect?
CVE-2026-5027 affects Unknown. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-5027?
Patch when available; sanitize filenames; enforce strict path validation.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can write files to server filesystem via ../ in multipart filename; may overwrite configs/logs or host payloads.
Patch when possible