What is CVE-2026-33682?

CVE-2026-33682 is a medium-severity vulnerability in Snowflake Streamlit, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.7/10. Published 2026-03-26.

How severe is CVE-2026-33682?

Medium severity. CVSS v3 base score is 4.7 out of 10.

SSRF in Snowflake Streamlit

CVE-2026-33682

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-03-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Snowflake Streamlit
Streamlit — versions < 1.54.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/streamlit/streamlit/security/advisories/GHSA-7p48-42j8-8846 (Vendor Advisory)
github.com/streamlit/streamlit/commit/23692ca70b2f2ac720c72d1feb4f190c9d6eed76 (Patch)
github.com/streamlit/streamlit/releases/tag/1.54.0 (Product, Release Notes)

Frequently asked questions

What is CVE-2026-33682?: CVE-2026-33682 is a medium-severity vulnerability in Snowflake Streamlit, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.7/10. Published 2026-03-26.
How severe is CVE-2026-33682?: Medium severity. CVSS v3 base score is 4.7 out of 10.