CVE-2021-22255Network attack vector

Internal HTTP file disclosure via unchecked upload URL

Published Aug 20, 2021 · Updated Aug 3, 2024

SSRF in Baserow 0.6.0 through 1.0.1 allows remote authenticated users to retrieve HTTP files from services on its internal network. The URL file-upload handler fetched a supplied address without resolving its host and rejecting private IP addresses. A valid account and network access to Baserow are required; successful requests copy internal HTTP responses into attacker-accessible uploaded files.

CVSS severity7.7
High
EPSS probability1.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Baserow 0.6.0 through 1.0.1 allows remote authenticated users to retrieve HTTP files from services on its internal network. The URL file-upload handler fetched a supplied address without resolving its host and rejecting private IP addresses. A valid account and network access to Baserow are required; successful requests copy internal HTTP responses into attacker-accessible uploaded files.

The record

CVE
CVE-2021-22255
Published
Aug 20, 2021
Updated
Aug 3, 2024
Vendor
Baserow
Product
Baserow
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=>0.6.0, <1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Baserow · Baserowversion=>0.6.0, <1.1.0

Published CVSS scores

4.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:S/C:P/I:N/A:N
7.7GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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