High · published October 16, 2025
⚡ A sneaky type confusion vulnerability lurks in the QuickJS engine, allowing attackers to twist strings into something more sinister! 🔥 Think of it like a chef who assumes they're working with a carton of eggs but instead, someone sneaks in a box of rocks. When they try to whip up an omelet, they could end up with a messy kitchen instead of a delicious meal! An attacker could exploit this flaw to manipulate the type of the left-hand operand, leading to memory corruption and potentially executing arbitrary code within the QuickJS runtime. This could compromise the entire application, making it a prime target for malicious activity.
Think of it like a chef who assumes they're working with a carton of eggs but instead, someone sneaks in a box of rocks. When they try to whip up an omelet, they could end up with a messy kitchen instead of a delicious meal! This type confusion vulnerability occurs when the QuickJS engine mishandles the addition operation on strings, allowing attackers to modify the left operand's type during a conversion callback, resulting in dangerous out-of-bounds memory access.
An attacker could exploit this flaw to manipulate the type of the left-hand operand, leading to memory corruption and potentially executing arbitrary code within the QuickJS runtime. This could compromise the entire application, making it a prime target for malicious activity. To mitigate this vulnerability, update the QuickJS engine to the latest version where this issue is addressed. Additionally, review your code to ensure proper type handling and implement strict type checks to prevent similar vulnerabilities in the future. You've got this! Addressing this vulnerability will keep your applications safe and sound. 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| quickjs_project/quickjs | < 2025-09-13 | 2025-09-13 |