QuestDB UI's Web Console is Vulnerable to Cross-Site Scripting

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

2.0 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P · score source

EPSS

• CVE-2026-0824: 0.29% estimated exploitation activity in the next 30 days; percentile 21.57 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

A security flaw has been discovered in questdb ui up to 1.11.9. Impacted is an unknown function of the component Web Console. The manipulation results in cross site scripting. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.1.10 is recommended to address this issue. The patch is identified as b42fd9f18476d844ae181a10a249e003dafb823d. You should upgrade the affected component. The vendor confirmed early that the fix "is going to be released as a part of QuestDB 9.3.0" as well.

Published by the source

10 Jan 2026, 15:31 UTC

Last modified by the source

3 Feb 2026, 03:01 UTC

Source last checked

26 Oct 2026, 12:41 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-xf94-h87h-g9wr

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-xf94-h87h-g9wr

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# Patch Next advisory brief: CVE-2026-0824

Advisory: QuestDB UI's Web Console is Vulnerable to Cross-Site Scripting
IDs: CVE-2026-0824, GHSA-xf94-h87h-g9wr
Record: https://patchnext.com/advisories/cve-2026-0824 (revision 3, source checked 26 Oct 2026, 12:41 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.0)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: @questdb/web-console 1.1.10. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm @questdb/web-console: affected < 1.1.10; fixed in 1.1.10

## Suggested inspection (read-only)
- `npm ls @questdb/web-console --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on @questdb/web-console.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-xf94-h87h-g9wr (OSV record GHSA-xf94-h87h-g9wr lists affected ranges: npm @questdb/web-console >=0 <1.1.10 (fixed))
- Verified: https://github.com/advisories/GHSA-xf94-h87h-g9wr (GitHub-reviewed advisory GHSA-xf94-h87h-g9wr lists affected ranges: npm @questdb/web-console >=0 <1.1.10)

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