CVE-2022-21189: The package dexie before 3.2.2, from 4.0.0-alpha.1 and before 4.0.0-alpha.3 are vulnerable to Prototype Pollut

This week

HIGH 7.3REMOTEUPGRADEDOWNGRADE

CVE-2022-21189 is a high-severity flaw (CVSS 7.3) affecting dexie, dexie. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The package dexie before 3.2.2, from 4.0.0-alpha.1 and before 4.0.0-alpha.3 are vulnerable to Prototype Pollution in the Dexie.setByKeyPath(obj, keyPath, value) function which does not properly check the keys being set (like __proto__ or constructor). This can allow an attacker to add/modify properties of the Object.prototype leading to prototype pollution vulnerability. **Note:** This vulnerability can occur in multiple ways, for example when mo

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-1321
Published	2022-05-01
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: dexie

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

Am I affected?

Timeline

2022-05-01 16:15 UTCPublished CVE record published
2026-06-17 04:25 UTCUpdated Record last modified

dexie dexie UPGRADE

Affected: < 3.2.2

Fixed in: 3.2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls dexie

2. UPGRADE to 3.2.2

npm install dexie@">=3.2.2"

dexie dexie DOWNGRADE

Affected: 4.0.0 alpha1 · 4.0.0 alpha2

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy dexie || rpm -q dexie || dexie --version

2. No fixed release: DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison dexie sudo apt install dexie=<VERSION_BEFORE_4.0.0> sudo apt-mark hold dexie

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dexie sudo dnf downgrade dexie-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add dexie

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-2022-21189?

dexie: upgrade to 3.2.2; dexie: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-21189 being exploited?

CVE-2022-21189 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-2022-21189 affect?

CVE-2022-21189 affects dexie, dexie. Severity is high (CVSS 7.3). The package dexie before 3.2.2, from 4.0.0-alpha.1 and before 4.0.0-alpha.3 are vulnerable to Prototype Pollution in the Dexie.setByKeyPath(obj, keyPath, value) function which does not properly check the keys being set (like __proto__ or co

How urgent is CVE-2022-21189?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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