Is parse-server affected by CVE-2026-39321?

npm parse-server is affected in >=9.0.0 <9.8.0-alpha.6, <8.6.74.

Is CVE-2026-39321 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

medium

CVE-2026-39321

Q: Is CVE-2026-39321 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

npm · parse-server

Summary

Parse Server has a login timing side-channel reveals user existence

Severity: medium
EPSS: 0.2% (p14)
Also known as: GHSA-mmpq-5hcv-hf2v, BIT-parse-2026-39321
Published: 2026-04-08

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-mmpq-5hcv-hf2v
https://nvd.nist.gov/vuln/detail/CVE-2026-39321
https://github.com/parse-community/parse-server/pull/10398

Related advisories

GHSA-cgxm-vr2f-6fj8 — high · npm/parse-server
CVE-2026-47138 — high · npm/parse-server
CVE-2026-34784 — high · npm/parse-server
CVE-2026-47248 — medium · npm/parse-server
CVE-2026-39381 — medium · npm/parse-server
CVE-2026-34595 — medium · npm/parse-server
CVE-2026-34574 — medium · npm/parse-server

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.