stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.6.0, the JSONC parser at stream-json/jsonc/parser.js and verifier at stream-json/jsonc/verifier.js restart comment-terminator scanning from the opening slash whenever a block or line comment spans an input chunk, while retaining the accumulated comment buffer. Delivering a large valid comment across many small chunks therefore causes quadratic CPU work and can stall the Node.js event loop. The maintainer characterizes the attack vector as local because the documented JSONC input is locally owned or user-controlled configuration, rather than input intended for the open internet. This JSONC-only scope does not include the plain JSON parser, which advances through and discards consumed string and number data. This issue is fixed in version 3.6.0.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory
    footprint. Prior to 3.6.0, the JSONC parser at stream-json/jsonc/parser.js and verifier at stream-
    json/jsonc/verifier.js restart comment-terminator scanning from the opening slash whenever a block or line
    comment spans an input chunk, while retaining the accumulated comment buffer. Delivering a large valid
    comment across many small chunks therefore causes quadratic CPU work and can stall the Node.js event loop.
    The maintainer characterizes the attack vector as local because the documented JSONC input is locally
    owned or user-controlled configuration, rather than input intended for the open internet. This JSONC-only
    scope does not include the plain JSON parser, which advances through and discards consumed string and
    number data. This issue is fixed in version 3.6.0. (CVE-2026-104182)

ID	Name	Product	Family	Type	Severity
478034	Chainguard: kubeflow-pipelines-frontend: security update to 2.18.0-r0	Tenable Cloud Security	Chainguard Local Security Checks	Local	medium
478034	Chainguard: kubeflow-pipelines-frontend: security update to 2.18.0-r0	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	Local	medium
472985	SCA: security update for stream-json (GHSA-hqr4-qq8f-hg3x)	Tenable Cloud Security	SCA Checks	Local	medium
472985	SCA: security update for stream-json (GHSA-hqr4-qq8f-hg3x)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium

Detections

Analytics

CVE-2026-104182

medium

Tenable Plugins

medium

medium

medium

medium