CVE-2022-24802: deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects

Q: How do I fix CVE-2022-24802?

deepmerge-ts: upgrade to 4.0.2. Exact commands for each OS are on this page.

Q: Is CVE-2022-24802 being exploited?

CVE-2022-24802 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-2022-24802 affect?

CVE-2022-24802 affects deepmerge-ts. Severity is high (CVSS 8.1). deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in vers

Q: How urgent is CVE-2022-24802?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.1REMOTEUPGRADE

CVE-2022-24802 is a high-severity flaw (CVSS 8.1) affecting deepmerge-ts. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in version 4.0.2. There are no known workarounds for this issue.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-915, CWE-1321
Published	2022-04-01
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: deepmerge-ts project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-04-01 00:15 UTCPublished CVE record published
2026-06-17 04:32 UTCUpdated Record last modified

deepmerge-ts project deepmerge-ts UPGRADE

Affected: < 4.0.2

Fixed in: 4.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy deepmerge-ts || rpm -q deepmerge-ts || deepmerge-ts --version

2. UPGRADE to 4.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade deepmerge-ts

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade deepmerge-ts

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2022-24802?

deepmerge-ts: upgrade to 4.0.2. Exact commands for each OS are on this page.

Is CVE-2022-24802 being exploited?

CVE-2022-24802 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-2022-24802 affect?

CVE-2022-24802 affects deepmerge-ts. Severity is high (CVSS 8.1). deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. deepmerge-ts is vulnerable to Prototype Pollution via file deepmerge.ts, function defaultMergeRecords(). This issue has been patched in vers

How urgent is CVE-2022-24802?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

References

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