CVE-2026-126286

NocoDB before 2026.08.0 Reflected XSS via ncRedirectUrl in PageLeavingWarning.vue

Published Nov 13, 2026 CVSS 4.0 · 8.6 High EPSS n/a KEV · Not listed

Description

NocoDB before 2026.08.0 contains a reflected cross-site scripting vulnerability in PageLeavingWarning.vue that allows unauthenticated attackers to execute script by embedding an ASCII control character in the ncRedirectUrl scheme. Attackers can send a crafted link that bypasses the scheme check and reaches the anchor href or window.location, stealing the session token from localStorage for account takeover.

Affected Products

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

unaffected

Version	Status	Constraints
`0`	affected	< 2026.08.0
`2026.08.0`	unaffected	—

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/nocodb/nocodb/security/advisories/GHSA-x3wx-294c-4p48
https://www.vulncheck.com/advisories/nocodb-before-2026.08.0-reflected-xss-via-ncredirecturl-in-pageleavingwarning-vue

History

Nov 13, 2026 9:45 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		NocoDB before 2026.08.0 contains a reflected cross-site scripting vulnerability in PageLeavingWarning.vue that allows unauthenticated attackers to execute script by embedding an ASCII control character in the ncRedirectUrl scheme. Attackers can send a crafted link that bypasses the scheme check and reaches the anchor href or window.location, stealing the session token from localStorage for account takeover.
Title		NocoDB before 2026.08.0 Reflected XSS via ncRedirectUrl in PageLeavingWarning.vue
First Time appeared		Nocodb Nocodb nocodb
Weaknesses		CWE-79
CPEs		cpe:2.3:a:nocodb:nocodb::::::::
Vendors & Products		Nocodb Nocodb nocodb
References		https://github.com/nocodb/nocodb/security/advisories/GHSA-x3wx-294c-4p48 https://www.vulncheck.com/advisories/nocodb-before-2026.08.0-reflected-xss-via-ncredirecturl-in-pageleavingwarning-vue
Metrics		cvssV3_1 `{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}` cvssV4_0 `{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}`