Auth bypass in Jitsucom Jitsu
CVE-2026-115509
Jitsu console before 2.14.0-beta.41 contains an incorrect authorization vulnerability in sources/state.ts handlers that call findFirst without await, so the syncId ownership check never fails. Authenticated users knowing another workspace's sync ID can read, overwrite or delete its stream cursors, causing data re-ingestion or skipped data.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/jitsucom/jitsu/issues/1242 (issue-tracking)
- github.com/jitsucom/jitsu/commit/9359d575ba50cd383e7762f9034154dea9346eb3 (patch)
- github.com/jitsucom/jitsu/releases/tag/jitsu-services2.14.0-beta.41 (release-notes)
- github.com/jitsucom/jitsu (product)
- www.vulncheck.com/advisories/jitsu-console-before-2.14.0-beta.41-cross-workspac… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115509?
- CVE-2026-115509 is a medium-severity vulnerability in Jitsucom Jitsu, classified under Incorrect Authorization. CVSS score: 4.2/10. Published 2026-10-22.
- How severe is CVE-2026-115509?
- Medium severity. CVSS v3 base score is 4.2 out of 10.