Page generated: 06 Nov 2026, 03:51 UTC
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CVE-2026-106073

Node2Shell

A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.realpathSync.native()`. As a result, code running under `--permission` with restri…

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A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.realpathSync.native()`. As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.
CVSS 3.3 (LOW)

Attention and evidence

HYPE SCORE
2.9/10
REALITY · THREAT PRIORITY
1.2/10
General review priority; not probability

Evidence confidence: Insufficient evidence

Why this priority?
  • Technical severity: CVSS 3.3: +1.15
  • Fresh EPSS: 0.25%: +0.01

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 2 documents and public datasets.

Hype components

Headline sample (25%)
30/100
Press, 30 days (60%)
10/100
Grounded branding (15%)
100/100
HYPE TOTAL28/100

Sources and documents

FortiGuard Labs | FortiGuard Center - IR Advisories
Press · 26 Oct 2026, 07:00 · Node2Shell CVEs
Una Al Día
Press · 23 Oct 2026, 08:01 · Node.js corrige fallos graves de TLS y Brotli en sus ramas 26, 24 y 22

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 2.9 · reality 1.2 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs. Published 13 days ago. Exploitation evidence usually takes weeks to show up: a low reality score can mean there is no data yet, not that the flaw is mild.

Evidence in context

Confidence in exploitation evidence
Insufficient evidence
Priority basis
Exploitation in attacks unconfirmed; CVSS 3.3; EPSS 0.3%
Attention, last 30 days
2 distinct story titles; 2 press documents; 2 publisher domains.
Technical potential
local access, low privileges, no user interaction.
Observed activity
No exploitation observation is recorded.
Known scale
Not quantified.
Evidence confidence basis
Insufficient evidence

Score evaluated: 2026-11-05 13:59:51.107056+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
23 Oct 2026, 08:01
Published
23 Oct 2026, 16:15
Latest press mention
26 Oct 2026, 07:00
Score calculated
05 Nov 2026, 13:59
Name
Node2Shell