# stream-json (npm) vulnerabilities

4 known vulnerabilities (4 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://www.npmjs.com/package/stream-json

## Advisories (4)

### [CVE-2026-114129](https://cve.now/CVE-2026-114129): stream-json: FlexAssembler string/RegExp path filters join the full key stack per container start, giving O(depth^2) CPU denial of service

- Severity: Medium 6.2
- Published: Oct 21, 2026
- Affected: from 2.0.0, fixed in 3.7.0.

### [CVE-2026-104183](https://cve.now/CVE-2026-104183): stream-json: Prototype pollution: Assembler writes this.current\[this.key\] on plain objects

- Severity: Medium 5.1
- Published: Oct 1, 2026
- Affected: fixed in 3.6.0.

### [CVE-2026-104182](https://cve.now/CVE-2026-104182): stream-json: JSONC parser and verifier re-scan the whole accumulated comment on every input chunk

- Severity: Medium 6.2
- Published: Oct 1, 2026
- Affected: fixed in 3.6.0.

### [CVE-2026-71429](https://cve.now/CVE-2026-71429): stream-json: pick/ignore/filter/replace filters are O(depth²) on nested input — small crafted JSON blocks the event loop for…

- Severity: Medium 6.2
- Published: Sep 3, 2026
- Affected: fixed in 3.5.0.

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