CVE-2026-18817 (GCVE-0-2026-18817)

Vulnerability from cvelistv5 – Published: 2026-08-04 22:00 – Updated: 2026-08-05 14:57 Disputed
VLAI
Title
Baserow Inactive Non-Staff User serializers.py BaserowImpersonateAuthTokenSerializer improper authorization
Summary
A security flaw has been discovered in Baserow up to 2.3.2. Affected by this issue is the function BaserowImpersonateAuthTokenSerializer of the file backend/src/baserow/api/admin/users/serializers.py of the component Inactive Non-Staff User Handler. Performing a manipulation results in improper authorization. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult. The presence of this vulnerability remains uncertain at this time. Upgrading to version 2.3.3 can resolve this issue. The affected component should be upgraded. The project maintainer explains: "While the problem exists, I'm not really sure if it's a vulnerability. (....) Even though the back gives a token for a deactivate user, none of the endpoints actually work. That said, we will fix it, but so far it seems more like a bug instead of a vulnerability."
Severity
2.1 (Low)
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
2.2 (Low)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C
2.2 (Low)
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-266 - Incorrect Privilege Assignment
Assigner
References
URL Tags
https://vuldb.com/vuln/385816 vdb-entrytechnical-description
https://vuldb.com/vuln/385816/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18817 third-party-advisory
https://vuldb.com/submit/857942 third-party-advisory
https://github.com/baserow/baserow/releases/tag/2.3.3 patch
Impacted products
Vendor Product Version
n/a Baserow Affected: 2.3.0
Affected: 2.3.1
Affected: 2.3.2
Unaffected: 2.3.3
    cpe:2.3:a:baserow:baserow:*:*:*:*:*:*:*:*
Credits
GalaxynX (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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