---
title: "CVE-2026-92780: KnowStreaming - Broken Access Control"
description: "KnowStreaming through 3.4.1 contains a broken access control vulnerability caused by failure to enforce role-based access control on REST API endpoints, letting authenticated users escalate privileges to administrator, exploit requires authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-92780/
---

# CVE-2026-92780 KnowStreaming - Broken Access Control

KnowStreaming through 3.4.1 contains a broken access control vulnerability caused by failure to enforce role-based access control on REST API endpoints, letting authenticated users escalate privileges to administrator, exploit requires authentication.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.52% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-92780)

## Details

Type

Broken Access Control

Impact

Privilege Escalation

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

16 September 2026

Updated

15 October 2026

Weakness

[CWE-862](https://cwe.mitre.org/data/definitions/862.html)

## Vendor fix

Update to the latest version that enforces proper role-based access control.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-92780](https://nvd.nist.gov/vuln/detail/CVE-2026-92780)
- [https://github.com/didi/KnowStreaming/blob/v3.4.0/km-rest/src/main/java/com/xiaojukeji/know/streaming/km/rest/interceptor/PermissionInterceptor.java#L46-L74](https://github.com/didi/KnowStreaming/blob/v3.4.0/km-rest/src/main/java/com/xiaojukeji/know/streaming/km/rest/interceptor/PermissionInterceptor.java#L46-L74)
- [https://github.com/didi/KnowStreaming/issues/1263](https://github.com/didi/KnowStreaming/issues/1263)
- [https://www.vulncheck.com/advisories/knowstreaming-through-3.4.1-missing-authorization-on-the-rest-api](https://www.vulncheck.com/advisories/knowstreaming-through-3.4.1-missing-authorization-on-the-rest-api)
- [https://github.com/didi/KnowStreaming](https://github.com/didi/KnowStreaming)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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