https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 05 Oct 2026 08:56:20 +0000 https://cve.radiocsirt.org/vuln/cleanstart-2026-ce10526 <p><strong>Withdrawn by the publisher.</strong></p> <p><strong>Affected:</strong> CleanStart: renovate</p> <p>Multiple security vulnerabilities affect the renovate package. These issues are resolved in later releases. See references for individual vulnerability details.</p> <p><strong>Withdrawn by the publisher.</strong></p> <p><strong>Affected:</strong> CleanStart: renovate</p> <p>Multiple security vulnerabilities affect the renovate package. These issues are resolved in later releases. See references for individual vulnerability details.</p> https://cve.radiocsirt.org/vuln/cleanstart-2026-ce10526 https://cve.radiocsirt.org/vuln/euvd-2026-280502 EUVD-2026-280502 https://cve.radiocsirt.org/vuln/euvd-2026-280502 https://cve.radiocsirt.org/vuln/fkie_cve-2026-35209 <p>defu is software that allows uers to assign default properties recursively. Prior to version 6.1.5, applications that pass unsanitized user input (e.g. parsed JSON request bodies, database records, or config files from untrusted sources) as the first argument to `defu()` are vulnerable to prototype pollution. A crafted payload containing a `__proto__` key can override intended default values in the merged resul. The internal `_defu` function used `Object.assign({}, defaults)` to copy the defaults object. `Object.assign` invokes the `__proto__` setter, which replaces the resulting object&#39;s `[[Prototype]]` with attacker-controlled values. Properties inherited from the polluted prototype then bypass the existing `__proto__` key guard in the `for...in` loop and land in the final result. Version 6.1.5 replaces `Object.assign({}, defaults)` with object spread (`{ ...defaults }`), which uses `[[DefineOwnProperty]]` and does not invoke the `__proto__` setter.</p> <p>defu is software that allows uers to assign default properties recursively. Prior to version 6.1.5, applications that pass unsanitized user input (e.g. parsed JSON request bodies, database records, or config files from untrusted sources) as the first argument to `defu()` are vulnerable to prototype pollution. A crafted payload containing a `__proto__` key can override intended default values in the merged resul. The internal `_defu` function used `Object.assign({}, defaults)` to copy the defaults object. `Object.assign` invokes the `__proto__` setter, which replaces the resulting object&#39;s `[[Prototype]]` with attacker-controlled values. Properties inherited from the polluted prototype then bypass the existing `__proto__` key guard in the `for...in` loop and land in the final result. Version 6.1.5 replaces `Object.assign({}, defaults)` with object spread (`{ ...defaults }`), which uses `[[DefineOwnProperty]]` and does not invoke the `__proto__` setter.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-35209 https://cve.radiocsirt.org/vuln/ghsa-737v-mqg7-c878 <p><strong>Affected:</strong> npm: defu</p> <p>### Impact</p> <p>Applications that pass unsanitized user input (e.g. parsed JSON request bodies, database records, or config files from untrusted sources) as the first argument to `defu()` are vulnerable to prototype pollution.</p> <p>A crafted payload containing a `__proto__` key can override intended default values in the merged result:</p> <p>```js import { defu } from &#39;defu&#39;</p> <p>const userInput = JSON.parse(&#39;{&#34;__proto__&#34;:{&#34;isAdmin&#34;:true}}&#39;) const config = defu(userInput, { isAdmin: false })</p> <p>config.isAdmin // true — attacker overrides the server default ```</p> <p>### Root Cause</p> <p>The internal `_defu` function used `Object.assign({}, defaults)` to copy the defaults object. `Object.assign` invokes the `__proto__` setter, which replaces the resulting object&#39;s `[[Prototype]]` with attacker-controlled values. Properties inherited from the polluted prototype then bypass the existing `__proto__` key guard in the `for...in` loop and land in the final result.</p> <p>### Fix</p> <p>Replace `Object.assign({}, defaults)` with object spread (`{ ...defaults }`), which uses `[[DefineOwnProperty]]` and does not invoke the `__proto__` setter.</p> <p>### Affected Versions</p> <p>&lt;= 6.1.4</p> <p>### Credits</p> <p>Reported by [@BlackHatExploitation](https://github.com/BlackHatExploitation)</p> <p><strong>Affected:</strong> npm: defu</p> <p>### Impact</p> <p>Applications that pass unsanitized user input (e.g. parsed JSON request bodies, database records, or config files from untrusted sources) as the first argument to `defu()` are vulnerable to prototype pollution.</p> <p>A crafted payload containing a `__proto__` key can override intended default values in the merged result:</p> <p>```js import { defu } from &#39;defu&#39;</p> <p>const userInput = JSON.parse(&#39;{&#34;__proto__&#34;:{&#34;isAdmin&#34;:true}}&#39;) const config = defu(userInput, { isAdmin: false })</p> <p>config.isAdmin // true — attacker overrides the server default ```</p> <p>### Root Cause</p> <p>The internal `_defu` function used `Object.assign({}, defaults)` to copy the defaults object. `Object.assign` invokes the `__proto__` setter, which replaces the resulting object&#39;s `[[Prototype]]` with attacker-controlled values. Properties inherited from the polluted prototype then bypass the existing `__proto__` key guard in the `for...in` loop and land in the final result.</p> <p>### Fix</p> <p>Replace `Object.assign({}, defaults)` with object spread (`{ ...defaults }`), which uses `[[DefineOwnProperty]]` and does not invoke the `__proto__` setter.</p> <p>### Affected Versions</p> <p>&lt;= 6.1.4</p> <p>### Credits</p> <p>Reported by [@BlackHatExploitation](https://github.com/BlackHatExploitation)</p> https://cve.radiocsirt.org/vuln/ghsa-737v-mqg7-c878