NocoDB before 2026.08.1 contains an authentication bypass vulnerability in oauth-token.service.ts that treats PKCE as a substitute for confidential client authentication, skipping client secret verification when omitted. Attackers holding a captured authorization code and PKCE verifier can mint access tokens and 60-day refresh tokens for a confidential client without knowing its secret.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00202.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
nocodb nocodb unaffected
Version Status Constraints
0 affected < 2026.08.1
2026.08.1 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
Nocodb Subscribe
Nocodb Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/nocodb/nocodb/security/advisories/GHSA-4cx5-q9xx-5pgj cve-icon cve-icon
https://www.vulncheck.com/advisories/nocodb-before-2026.08.1-client-authentication-bypass-via-oauth-token-exchange cve-icon cve-icon
History

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Description NocoDB before 2026.08.1 contains an authentication bypass vulnerability in oauth-token.service.ts that treats PKCE as a substitute for confidential client authentication, skipping client secret verification when omitted. Attackers holding a captured authorization code and PKCE verifier can mint access tokens and 60-day refresh tokens for a confidential client without knowing its secret.
Title NocoDB before 2026.08.1 Client Authentication Bypass via OAuth Token Exchange
First Time appeared Nocodb
Nocodb nocodb
Weaknesses CWE-287
CPEs cpe:2.3:a:nocodb:nocodb:*:*:*:*:*:*:*:*
Vendors & Products Nocodb
Nocodb nocodb
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T09:36:43.031Z

Reserved: 2026-11-10T20:14:15.972Z

Link: CVE-2026-126276

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-13T10:17:30.733

Modified: 2026-11-13T10:17:30.733

Link: CVE-2026-126276

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses