Vulnerability in Parse-Community Parse-Server
CVE-2026-32269
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.13 and 8.6.39, the OAuth2 authentication adapter does not correctly validate app IDs when appidField and appIds are configured. During app ID validation, a malformed value is sent to the token introspection endpoint instead of the user's actual access token. Depending on the introspection endpoint's behavior, this could either cause all OAuth2 logins to fail, or allow authentication from disallowed app contexts if the endpoint returns valid-looking data for the malformed request. Deployments using the OAuth2 adapter with appidField and appIds configured are affected. This vulnerability is fixed in 9.6.0-alpha.13 and 8.6.39.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Parse-Community Parse-Server — versions >= 9.0.0, < 9.6.0-alpha.13, >= 8.0.2, < 8.6.39
- Parseplatform Parse-Server — versions 9.6.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-32269?
- CVE-2026-32269 is a medium-severity vulnerability in Parse-Community Parse-Server, classified under CWE-683. CVSS score: 6.5/10. Published 2026-03-12.
- How severe is CVE-2026-32269?
- Medium severity. CVSS v3 base score is 6.5 out of 10.