CVE-2026-126279 json
NocoDB before 2026.06.2 Stored XSS via AI Field Prompt Tooltip
published 19d ago modified yesterday also EUVD-2026-125242 , GHSA-j96w-qm45-vgp2
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository nocodb/nocodb. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 6.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
NocoDB before 2026.06.2 contains a stored cross-site scripting vulnerability in PromptWithFields.vue that renders unescaped field references from AI field prompts as HTML in a tooltip. Attackers with the Creator role or above can store markup in a prompt's field reference that executes when victims open the field configuration, stealing the localStorage session token to call authenticated APIs as the victim.
Patch / fix
- nocodb nocodb 2026.06.2
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- yesterday
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N |
| CNA | 4.0 | 7.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Inferred packages
No advisory lists a package for this vulnerability yet. The CVE names these as products and links their GitHub repository, and the package registry names the same repository, so they are probably the affected packages. Low confidence: the versions are the CVE’s own for the product, and a stack check reports the package as unchecked when there are none.
| ecosystem | package | repository | affected |
|---|---|---|---|
| npm | nocodb | nocodb/nocodb | < 2026.06.2 |
Affected products
- nocodb nocodb
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/nocodb/nocodb/security/advisories/GHSA-j96w-qm45-vgp2
vendor-advisory, advisory
-
vulncheck.com
/advisories/nocodb-before-2026.06.2-stored-xss-via-ai-field-prompt-tooltip
third-party-advisory
Sources
- CVE List CVE-2026-126279
- NVD CVE-2026-126279
- Maintainer advisory GHSA-j96w-qm45-vgp2
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of nocodb/nocodb published their own advisory on GitHub. Reviewed sources take precedence over it.