Auth bypass in Nasa-Ammos Plandev (Sequencing-Server)

CVE-2026-71214

The Aerie/PlanDev sequencing-server's authorization middleware (sequencing-server/src/app.ts) derives the caller's Hasura session role via getHasuraSession, which prefers a session_variables object taken directly from the client-supplied JSON request body over the Authorization header's JWT claims, with no verification that the request actually originated from Hasura.

Vulnerability class: Broken Authentication

EPSS: 0.003 (23.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-71214?
CVE-2026-71214 is a critical-severity vulnerability in Nasa-Ammos Plandev (Sequencing-Server), classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-05.
How severe is CVE-2026-71214?
Critical severity. CVSS v3 base score is 9.8 out of 10.