High · CVSS 8.2CVE-2026-110854

Parse Server before 8.6.97 and 9.10.2-alpha.6 Denial of Service via Unhandled Email ErrorCVE-2026-110854

Answer in brief

CVE-2026-110854 records a High severity (CVSS 8.2) vulnerability in Parse Server before 8.6.97 and 9.10.2-alpha.6 Denial of Service via Unhandled Email Error. The current sources do not mark it as known exploited. The current feed maps parse-community/parse-server (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 14, 2026Updated Oct 14, 2026Source checked Oct 15, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.2
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps parse-community/parse-server (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
parse-community/parse-servergeneric	>=0 <8.6.97 \|\| >=9.0.0 <9.10.2-alpha.6	8.6.97, 9.10.2-alpha.6

Recommended response

Check inventory. Check lockfiles and deployed manifests for parse-community/parse-server.
Review the reported fix. Update parse-community/parse-server to 8.6.97 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 14, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.