1vulnerability
- Critical0 (0.0%)
- High1 (100.0%)
- Medium0 (0.0%)
- Moderate0 (0.0%)
- Low0 (0.0%)
toon-format-toon
Ecosystem: npm
Downloads:
- 0CriticalAffects 0 versions
- 1HighAffects 1 version
- 0MediumAffects 0 versions
- 0ModerateAffects 0 versions
- 0LowAffects 0 versions
Monthly breakdown
- 1 vulnerabilities
- Critical: 0
- High: 1
- Medium: 0
- Moderate: 0
- Low: 0
Vulnerabilities (1)
Known vulnerabilities affecting toon-format-toon, based on data from OSV.
| ID | Severity | Summary | Affected versions | Published | Source |
|---|---|---|---|---|---|
| GHSA-p95v-992w-h6c3 | High | TOON: Prototype pollution when decoding untrusted TOON input### Summary Decoding attacker-controlled TOON containing a `__proto__`, `constructor`, or `prototype` key wrote through the object's prototype chain instead of creating an own property, polluting `Object.prototype` for the whole runtime. The `expandPaths: 'safe'` path (dotted keys such as `a.__proto__.x`) was the strongest vector; plain nested objects, tabular rows, and quoted keys were all affected. The encoder had a matching defect: it silently dropped own `__proto__` properties and could fire an inherited setter while normalizing. ### Impact Any service that decodes untrusted TOON is aff |
| GitHub (opens in a new tab) |
- GHSA-p95v-992w-h6c3HighTOON: Prototype pollution when decoding untrusted TOON input
< 2.3.1
### Summary Decoding attacker-controlled TOON containing a `__proto__`, `constructor`, or `prototype` key wrote through the object's prototype chain instead of creating an own property, polluting `Object.prototype` for the whole runtime. The `expandPaths: 'safe'` path (dotted keys such as `a.__proto__.x`) was the strongest vector; plain nested objects, tabular rows, and quoted keys were all affected. The encoder had a matching defect: it silently dropped own `__proto__` properties and could fire an inherited setter while normalizing. ### Impact Any service that decodes untrusted TOON is aff
CVE: CVE-2026-82404