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CVE-2026-18817— Baserow Inactive Non-Staff User serializers.py BaserowImpersonateAuthTokenSerializer improper authorization

Quick assessment

Affected
n/a Baserow
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Baserow是Baserow组织开源的一款无代码数据库平台。 Baserow 2.3.2及之前版本存在安全漏洞，该漏洞源于对文件backend/src/baserow/api/admin/users/serializers.py中BaserowImpersonateAuthTokenSerializer函数操作不当，导致授权不当。

CVSS 2.2 · Low EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 4

VendorProduct Version RangeStatus
n/a Baserow 2.3.0 affected
2.3.1 affected
2.3.2 affected
2.3.3 unaffected
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I. Basic Information for CVE-2026-18817

Vulnerability Information
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Vulnerability Title
Baserow Inactive Non-Staff User serializers.py BaserowImpersonateAuthTokenSerializer improper authorization
Source: CVE Program / CVE List V5
Vulnerability Description
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."
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Baserow 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Baserow是Baserow组织开源的一款无代码数据库平台。 Baserow 2.3.2及之前版本存在安全漏洞，该漏洞源于对文件backend/src/baserow/api/admin/users/serializers.py中BaserowImpersonateAuthTokenSerializer函数操作不当，导致授权不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Baserow 2.3.0 cpe:2.3:a:baserow:baserow:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18817

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III. Intelligence Information for CVE-2026-18817

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Vendor Pages for CVE-2026-18817 (1)

Same Patch Batch · n/a · 2026-08-04 · 17 CVEs total

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IV. Related Vulnerabilities

Same product: Baserow
Same vendor: n/a
Same weakness: CWE-285

V. Comments for CVE-2026-18817

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