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Vulnerability record

CVE-2026-76833

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Full record read. Reported values and explicit gaps below come from the tracked record. Tracker data as of: .

What it is

Reported

@cgauge/yaml npm package contains an arbitrary code execution vulnerability that allows attackers to execute arbitrary JavaScript by embedding a custom !js YAML tag whose construct callback unconditionally calls eval() on attacker-supplied string values during document parsing. Any application parsing untrusted YAML input with this library exposes full Node.js runtime authority, including environment variable access, filesystem read/write, network access, and subprocess execution, with no safe-mode alternative or opt-out mechanism available. Source description excerpt; complete tracked detail loads below.

Source reported · Source: CVE record · Source last published: · Source last updated: · Tracker data as of:

What is affected

Reported

cgauge — @cgauge/yaml. Product-level identification only; no affected-version conclusion is available from this field.

Source reported · Source: CVE record · Source last published: · Source last updated: · Tracker data as of:

Urgency and basis

Reported

Track* · 225.1

Tracker computed · Tracker decision tier from the evidence detailed below · Source last updated: · Tracker data as of:

Exploitation evidence

Not reported

Not reported by tracked sources.

What to do

Not reported

Not reported by tracked sources.

Tracker inference. Guidance from the decision tier: Monitor more closely. May require action sooner than standard timelines.

Evidence detail

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