CVE-2026-50138
WebDAV port bypasses mode restrictions allowing authenticated file writes and deletes.
Is CVE-2026-50138 being exploited?
Not confirmed. CVE-2026-50138 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 0.33% probability of exploitation in the next 30 days.
How severe is CVE-2026-50138?
CVE-2026-50138 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-2026-50138?
Yes. A fix has been recorded for CVE-2026-50138. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-50138 affect?
CVE-2026-50138 affects goshs < 2.1.0 (WebDAV enabled with -w). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-50138?
Upgrade to goshs 2.1.0 or disable WebDAV; restrict access and require strong auth.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
An authenticated WebDAV client can PUT/DELETE/MKCOL/MOVE/COPY on the WebDAV port despite mode flags, enabling file modification, upload, and potential persistence/code upload.
Patch when possible
- affected< 2.1.0
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.