CVE-2021-43780Network attack vector

Authenticated internal resource access via one-time URL validation

Published Nov 23, 2021 · Updated Aug 4, 2024

SSRF in Redash 10.0.0 and earlier allows remote authenticated users to reach internal resources through URL-loading data sources. The affected query runners perform a one-time private-address check and then send the supplied URL through Requests, leaving destination changes unchecked. Exploitation requires permission to use an enabled URL-loading data source and allows access to resources reachable from the Redash server.

CVSS severity8.8
High
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Redash 10.0.0 and earlier allows remote authenticated users to reach internal resources through URL-loading data sources. The affected query runners perform a one-time private-address check and then send the supplied URL through Requests, leaving destination changes unchecked. Exploitation requires permission to use an enabled URL-loading data source and allows access to resources reachable from the Redash server.

The record

CVE
CVE-2021-43780
Published
Nov 23, 2021
Updated
Aug 4, 2024
Vendor
Redash
Product
Redash
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 23, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 10.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Redash · Redashversion=<= 10.0.0

Published CVSS scores

6.8GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
6.0NIST NVDAV:N/AC:M/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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