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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Nasa-Ammos Plandev (Sequencing-Server) — versions 0
Weakness classification (CWE)
References
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (third-party-advisory)
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.