Description (CNA)
Mozilla's Node-convict (version 6.2.2 and later) is vulnerable to a Denial of Service vulnerability caused by incomplete prototype‑pollution protections in config.set(). An attacker controlling the configuration key can write arbitrary properties to constructor.<key>, which walk() resolves to the global Object function. This allows overwriting core JavaScript methods such as Object.assign, leading to persistent process-wide failures and requiring a restart. The issue bypasses existing filters that only block constructor.prototype.* and __proto__.*. Exploitation requires an endpoint that forwards attacker-controlled keys into config.set().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Mozilla / Node-convict | affected 6.2.2 |
CWE
No CWE identifiers supplied.
References
- https://github.com/mozilla/node-convict
- https://github.com/tomasilluminati/security-research/blob/main/CVE-2026-106550/README.md
ADP enrichment
No English description supplied.
No references supplied.