Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
📦 npm
Not in CISA KEV

GHSA-g4cf-xj29-wqqr — parse-server

Fix: parse-community/parse-server#10270

GHSA-g4cf-xj29-wqqr is a Uncontrolled Resource Consumption vulnerability in parse-server. A fix is available for parse-server — see the affected versions and patch details below.

Parse Server: Denial of Service via unindexed database query for unconfigured auth providers

Also known asBIT-parse-2026-33538CVE-2026-33538
Published
Mar 24, 2026
Updated
Mar 27, 2026
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Sep 25, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-g4cf-xj29-wqqr.

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

2 pkgs affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

62other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
parse-servernpm
45Kdownloads / week

Description

Impact

An unauthenticated attacker can cause Denial of Service by sending authentication requests with arbitrary, unconfigured provider names. The server executes a database query for each unconfigured provider before rejecting the request, and since no database index exists for unconfigured providers, each request triggers a full collection scan on the user database. This can be parallelized to saturate database resources.

Patches

The fix validates that an authentication provider is configured before executing any database query. Requests with unconfigured providers are now rejected immediately without querying the database.

Workarounds

There is no known workaround other than upgrading.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
📦npmparse-server≥ 9.0.0&&< 9.6.0-alpha.529.6.0-alpha.52npm install parse-server@9.6.0-alpha.52
📦npmparse-serverall versions8.6.58npm install parse-server@8.6.58

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for parse-server, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update parse-server to 9.6.0-alpha.52 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g4cf-xj29-wqqr is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-g4cf-xj29-wqqr can be triaged on real exposure rather than presence alone.

Tailored to GHSA-g4cf-xj29-wqqr. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact An unauthenticated attacker can cause Denial of Service by sending authentication requests with arbitrary, unconfigured provider names. The server executes a database query for each unconfigured provider before rejecting the request, and since no database index exists for unconfigured providers, each request triggers a full collection scan on the user database. This can be parallelized to saturate database resources. ### Patches The fix validates that an authentication provider is configured before executing any database query. Requests with unconfigured providers are now rejecte
O3 Security · Impact-Aware SCA

Is GHSA-g4cf-xj29-wqqr in your dependencies?

O3 Security finds GHSA-g4cf-xj29-wqqr across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-g4cf-xj29-wqqr: parse-server DoS | O3 Security