PT-2026-26482 · Npm · Parse Server

Published 2026-03-19 · Updated 2026-03-19 · CVE-2026-33323

OSV

CVSS v4.0

6.3

Medium

AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Impact

The Pages route and legacy PublicAPI route for resending email verification links return distinguishable responses depending on whether the provided username exists and has an unverified email. This allows an unauthenticated attacker to enumerate valid usernames by observing different redirect targets. The existing emailVerifySuccessOnInvalidEmail configuration option, which is enabled by default and protects the API route against this, did not apply to these routes.

Patches

The email verification resend routes now respect the emailVerifySuccessOnInvalidEmail option. When set to true (the default), both routes redirect to the success page regardless of the outcome, preventing user enumeration.

Workarounds

There is no known workaround to prevent the information disclosure other than upgrading.

Fix

Weakness Enumeration

CWE-204

Related Identifiers

CVE-2026-33323

GHSA-H29G-Q5C2-9H4F

Affected Products

Parse Server

References · 5

• https://osv.dev/vulnerability/GHSA-h29g-q5c2-9h4f · Vendor Advisory
• https://github.com/parse-community/parse-server · Note
• https://github.com/parse-community/parse-server/pull/10238 · Note
• https://github.com/parse-community/parse-server/security/advisories/GHSA-h29g-q5c2-9h4f · Note
• https://github.com/parse-community/parse-server/pull/10243 · Note