RCE in Questdb Ui
CVE-2026-0824
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Questdb Ui — versions 1.11.0, 1.11.1, 1.11.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/59lab/dbdb/blob/main/There is a cross-site scripting(XSS) vulnerabil… (related)
- github.com/questdb/questdb/releases/tag/9.3.0 (patch)
- github.com/questdb/ui/pull/519 (issue-tracking, exploit)
- github.com/questdb/ui/commit/b42fd9f18476d844ae181a10a249e003dafb823d (patch)
- github.com/questdb/ui/pull/518 (issue-tracking, patch)
- github.com/questdb/ui/ (product)
Frequently asked questions
- What is CVE-2026-0824?
- CVE-2026-0824 is a low-severity vulnerability in Questdb Ui, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-01-10.
- How severe is CVE-2026-0824?
- Low severity. CVSS v3 base score is 3.5 out of 10.