CVE-2026-35200: Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js

Q: How do I fix CVE-2026-35200?

parse-server: upgrade to 8.6.73, 9.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-35200 being exploited?

CVE-2026-35200 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-35200 affect?

CVE-2026-35200 affects parse-server. Severity is medium (CVSS 5.4). Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.73 and 9.7.1-alpha.4, a file can be uploaded with a filename extension that passes the file extension allowlist (e.g., .txt

Q: How urgent is CVE-2026-35200?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2026-35200 is a medium-severity flaw (CVSS 5.4) affecting parse-server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.73 and 9.7.1-alpha.4, a file can be uploaded with a filename extension that passes the file extension allowlist (e.g., .txt) but with a Content-Type header that differs from the extension (e.g., text/html). The Content-Type is passed to the storage adapter without consistency validation. Storage adapters that store and serve the pr

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-436
Published	2026-04-06
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: parseplatform

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-06 20:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

parseplatform parse-server UPGRADE

Affected: < 8.6.73 · >= 9.0.0 and < 9.7.1 · 9.7.1 alpha1 · 9.7.1 alpha2 · 9.7.1 alpha3

Fixed in: 8.6.73, 9.7.1

Safe to downgrade to: a release before 9.0.0

1. Check installed version

npm ls parse-server

2. UPGRADE to 8.6.73

npm install parse-server@">=8.6.73"

3. If no update is available yet, DOWNGRADE to a release before 9.0.0

npm view parse-server versions npm install parse-server@"<9.0.0"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35200?

parse-server: upgrade to 8.6.73, 9.7.1. Exact commands for each OS are on this page.

Is CVE-2026-35200 being exploited?

CVE-2026-35200 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35200 affect?

CVE-2026-35200 affects parse-server. Severity is medium (CVSS 5.4). Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.73 and 9.7.1-alpha.4, a file can be uploaded with a filename extension that passes the file extension allowlist (e.g., .txt

How urgent is CVE-2026-35200?

Priority 20/100. No elevated risk signals yet.

Software pages

Node.js vulnerabilities

Related CVEs

CVE-2026-39321 LOW 3.7 UPGRADE Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js
CVE-2026-43930 MEDIUM 5.9 UPGRADE Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js
CVE-2021-47986 HIGH 7.5 DOWNGRADE Parse Server before 4.10.0 contains a supply chain vulnerability where incorrect version tags were pushed to t
CVE-2026-39381 MEDIUM 4.3 UPGRADE Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js
CVE-2026-33627 MEDIUM 6.5 UPGRADE Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js

References

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