CVE-2023-30857: @aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages

Routine

LOW 3.7REMOTEUPGRADE

CVE-2023-30857 is a low-severity flaw (CVSS 3.7) affecting ion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

@aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object, in `meta` decorator from the `@aedart/support` package. The likelihood of exploitation is questionable, given that a class's metadata can only be set or altered when the class is decorated via `meta()`. Furthe

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	3.7 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-1321
Published	2023-04-28
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2023-04-28 21:15 UTCPublished CVE record published
2026-06-17 05:55 UTCUpdated Record last modified

aedart ion UPGRADE

Affected: < 0.6.1

Fixed in: 0.6.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls ion

2. UPGRADE to 0.6.1

npm install ion@">=0.6.1"

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-2023-30857?

ion: upgrade to 0.6.1. Exact commands for each OS are on this page.

Is CVE-2023-30857 being exploited?

CVE-2023-30857 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-2023-30857 affect?

CVE-2023-30857 affects ion. Severity is low (CVSS 3.7). @aedart/support is the support package for Ion, a monorepo for JavaScript/TypeScript packages. Prior to version `0.6.1`, there is a possible prototype pollution issue for the `MetadataRecord`, when merged with a base class' metadata object,

How urgent is CVE-2023-30857?

Priority 28/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-21634 HIGH 7.5 UPGRADE Amazon Ion is a Java implementation of the Ion data notation

References

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