Auth bypass in Harnessrouter
CVE-2026-114361
A vulnerability was detected in HarnessRouter up to 0.31.10. This affects an unknown function of the file gateway/app.py of the component Identity Mode. Performing a manipulation of the argument X-Harness-Org/X-Harness-Member results in improper authorization. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is reported as difficult. Upgrading to version 0.31.11 mitigates this issue. The patch is named 48a26cdf9c4544d2c88d1a07f0777f063f1d753f. The affected component should be upgraded.
Published .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
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
- Harnessrouter — versions 0.31.0, 0.31.1, 0.31.10
Weakness classification (CWE)
References
- vuldb.com/vuln/424708 (technical-description, vdb-entry)
- vuldb.com/vuln/424708/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-114361 (third-party-advisory)
- vuldb.com/submit/1019383 (third-party-advisory)
- github.com/HarnessRouter/harnessrouter/security/advisories/GHSA-qrr8-m92f-7vfp (related)
- github.com/HarnessRouter/harnessrouter/pull/426 (issue-tracking, patch)
- github.com/HarnessRouter/harnessrouter/commit/48a26cdf9c4544d2c88d1a07f0777f063… (patch)
- github.com/HarnessRouter/harnessrouter/releases/tag/v0.31.11 (patch)
- github.com/HarnessRouter/harnessrouter/ (product)
Frequently asked questions
- What is CVE-2026-114361?
- CVE-2026-114361 is a medium-severity vulnerability in Harnessrouter, classified under Incorrect Privilege Assignment. CVSS score: 5.6/10. Published 2026-10-21.
- How severe is CVE-2026-114361?
- Medium severity. CVSS v3 base score is 5.6 out of 10.