StableLib is a stable library of useful TypeScript and JavaScript code. Prior to 2.0.4, the @stablelib/cbor decoder recursively processes nested CBOR arrays, maps, and tags through _decodeValue() without enforcing a maximum nesting depth. A sufficiently deep structure exhausts the JavaScript call stack, causing a decoding exception and potentially terminating an uncaught request worker or process. This issue is fixed in version 2.0.4.
CVE-2026-106447
HIGHPre-NVD 8.78.7Elevated
EchelonGraph scoreLOW confidence
This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 8.7Exploit: Elevated riskExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 8.7
- EG Score
- 8.7HIGHlow confidence
- EG Risk
- 70EG Risk 70/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity87% × 45%Exploitation40% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 6, 2026
Last Modified
October 7, 2026
Advisory Details (2)
Auto-updated Oct 6, 2026🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github_commit
commit 0149e18d9d47 (StableLib/stablelib)
Fix landed in StableLib/stablelib commit 0149e18d9d47 — awaiting tagged release
https://github.com/StableLib/stablelib/commit/0149e18d9d4736e22c257744ca945ebce7899a01githubMentions a patch (unverified)🟡 PoC Available
Stack exhaustion denial of service via deeply nested CBOR arrays, maps, or tags · Advisory · StableLib/stablelib · GitHub
https://github.com/StableLib/stablelib/security/advisories/GHSA-5jg4-p4qw-cgfrAffected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| @stablelib/cbor | — |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-07 15:31 UTCEG score recompute
- 2026-10-07 14:52 UTCEG score recompute
- 2026-10-06 20:32 UTCEG score recompute
- 2026-10-06 19:52 UTCEG score recompute
- 2026-10-06 19:51 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same CWE)
Frequently asked(4)
What is CVE-2026-106447?
CVE-2026-106447 is a high vulnerability published on October 6, 2026. StableLib is a stable library of useful TypeScript and JavaScript code. Prior to 2.0.4, the @stablelib/cbor decoder recursively processes nested CBOR arrays, maps, and tags through _decodeValue() without enforcing a maximum nesting depth. A sufficiently deep structure exhausts the JavaScript call…
When was CVE-2026-106447 disclosed?
CVE-2026-106447 was first published on October 6, 2026, with the most recent update on October 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-106447?
CVE-2026-106447 has a CVSS base score of 8.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-106447?
A fix for CVE-2026-106447 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-106447
Is Your Infrastructure Affected by CVE-2026-106447?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.