CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, с обикновен потребителски вход и след действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
CocoaMQTT is a MQTT 5.0 client library for iOS and macOS written in Swift. Prior to version 2.2.2, a vulnerability exists in the packet parsing logic of CocoaMQTT that allows an attacker (or a compromised/malicious MQTT broker) to remotely crash the host iOS/macOS/tvOS application. If an attacker publishes the 4-byte malformed payload to a shared topic with the RETAIN flag set to true, the MQTT broker will persist the payload. Any time a vulnerable client connects and subscribes to that topic, the broker will automatically push the malformed packet. The app will instantly crash in the background before the user can even interact with it. This effectively "bricks" the mobile application (a persistent DoS) until the retained message is manually wiped from the broker database. This issue has been patched in version 2.2.2.
Засегнати продукти
- emqx CocoaMQTT: < 2.2.2
Вид слабост
История
- 2 април 2026 Публикувано
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-30867
- https://nvd.nist.gov/vuln/detail/CVE-2026-30867
- https://github.com/emqx/CocoaMQTT/security/advisories/GHSA-r3fr-7m74-q7g2
- https://github.com/emqx/CocoaMQTT/pull/659
- https://github.com/emqx/CocoaMQTT/commit/010bca6f61b97d726252f61641d331a2bf82b338
- https://github.com/emqx/CocoaMQTT/releases/tag/2.2.2