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MEDIUM severity

CVE-2020-26288 — parse-server

MEDIUMFix: parse-community/parse-server@da905a3

CVE-2020-26288 is a medium-severity (CVSS 6.5) CWE-312 vulnerability in parse-server. A fix is available for parse-server — see the affected versions and patch details below.

Parse Server stores password in plain text

Also known asBIT-parse-2020-26288GHSA-4w46-w44m-3jq3
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs56th percentile — riskier than 56% of all scored CVEsHighest risk
0.00%0.44%0.87%1.31%0.2%0.8%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2020-26288 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg 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
47Kdownloads / week

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. It is an npm package "parse-server". In Parse Server before version 4.5.0, user passwords involved in LDAP authentication are stored in cleartext. This is fixed in version 4.5.0 by stripping password after authentication to prevent cleartext password storage.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmparse-serverall versions4.5.0npm install parse-server@4.5.0

Affected Products

1 product · 1 configurations
Application
parse-serverparseplatform
< 4.5.0
range

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 4.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-26288 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.

Frequently Asked Questions

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. It is an npm package "parse-server". In Parse Server before version 4.5.0, user passwords involved in LDAP authentication are stored in cleartext. This is fixed in version 4.5.0 by stripping password after authentication to prevent cleartext password storage.
O3 Security · Impact-Aware SCA

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CVE-2020-26288: parse-server — Fixed in 4.5.0