# CVE-2026-33682: Streamlit on Windows has Unauthenticated SSRF Vulnerability (NTLM Credential Exposure)

> CVE-2026-33682: Streamlit on Windows has Unauthenticated SSRF Vulnerability (NTLM Credential Exposure). CVSS 4.7 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-33682
Last updated: 2026-06-17T10:37:55Z

- Published: 2026-03-26 21:45 UTC · Updated: 2026-06-17 10:37 UTC · Assigner: GitHub\_M
- CVSS: 4.7 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
- EPSS: 0.30%, 22th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-918

## Description

Streamlit is a data oriented application development framework for python. Streamlit Open Source versions prior to 1.54.0 running on Windows hosts have an unauthenticated Server-Side Request Forgery (SSRF) vulnerability. The vulnerability arises from improper validation of attacker-supplied filesystem paths. In certain code paths, including within the \`ComponentRequestHandler\`, filesystem paths are resolved using \`os.path.realpath()\` or \`Path.resolve()\` before sufficient validation occurs. On Windows systems, supplying a malicious UNC path (e.g., \`\\\\attacker-controlled-host\\share\`) can cause the Streamlit server to initiate outbound SMB connections over port 445. When Windows attempts to authenticate to the remote SMB server, NTLMv2 challenge-response credentials of the Windows user running the Streamlit process may be transmitted. This behavior may allow an attacker to perform NTLM relay attacks against other internal services and/or identify internally reachable SMB hosts via timing analysis. The vulnerability has been fixed in Streamlit Open Source version 1.54.0.

## Affected vendors and products

- streamlit: streamlit

## Tracked companies

- [Snowflake](https://rewindex.com/company/snowflake.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-33682)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-33682)
- [https://github.com/streamlit/streamlit/commit/23692ca70b2f2ac720c72d1feb4f190c9d6eed76](https://github.com/streamlit/streamlit/commit/23692ca70b2f2ac720c72d1feb4f190c9d6eed76)
- [https://github.com/streamlit/streamlit/releases/tag/1.54.0](https://github.com/streamlit/streamlit/releases/tag/1.54.0)
- [https://github.com/streamlit/streamlit/security/advisories/GHSA-7p48-42j8-8846](https://github.com/streamlit/streamlit/security/advisories/GHSA-7p48-42j8-8846)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-33682 · Markdown: https://rewindex.com/cve/CVE-2026-33682.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-33682 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:05.138Z