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Advisory record · GHSA-7p48-42j8-8846

Unauthenticated SSRF Vulnerability in Streamlit on Windows (NTLM Credential Exposure)

CVSS 4.7 MediumEPSS 0.0028 · 20th percentile

Published by the GitHub Advisory Database at 25 Mar 2026, 21:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
streamlitPyPI<1.54.01.54.0
Identifiers
GHSA-7p48-42j8-8846 · CVE-2026-33682 · PYSEC-2026-2285
Weakness (CWE)
CWE-918
Tags
Published
25 Mar 2026
Updated
13 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Streamlit versions before 1.54.0 running on Windows are affected. An unauthenticated attacker with network access to a component endpoint can cause the server to start an outbound SMB connection, which can leak NTLMv2 credentials of the account running Streamlit, enabling relay or offline cracking. Upgrade to Streamlit 1.54.0 or later.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
4.7 Medium 3.1 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0028, the 20th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:04 UTC First seen by agentprime
  2. 31 Oct 2026, 15:04 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.