Critical flaw in Protobuf library enables JavaScript code execution
2026-04-19T07:23:26Z•101b30053041989c680dc6a409a38ffb94d47b129f78a79001a89c480e6918bc
Apache ActiveMQCISADDoSGrinexHuggingFaceJavaScriptMarimoMicrosoft DefenderNAKIVONKAbuseOperation PowerOFFPayouts KingPoCProtocol BuffersQEMURedSunWindows zero-dayZionSiphonbackup and replicationcryptocurrency exchangeoperational technologyprotobuf.jsransomwareremote code executionwater treatment
What happened
Recent BleepingComputer reports cover multiple high‑risk security developments: a critical remote code execution flaw in protobuf.js with public proof‑of‑concept allowing JavaScript code execution; active exploitation of a high‑severity Apache ActiveMQ vulnerability flagged by CISA; several recently leaked Windows zero‑days and a public PoC for a Microsoft Defender “RedSun” zero‑day granting SYSTEM; and an exploited Marimo notebook flaw used to deploy NKAbuse malware from Hugging Face. Other notable items include Payouts King ransomware using hidden QEMU VMs to evade endpoint security, ZionSih
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- bleepingcomputer
- Record identifier
- 101b30053041989c680dc6a409a38ffb94d47b129f78a79001a89c480e6918bc
- Enrichment time
- 2026-04-19T07:23:26Z
- AI-assisted enrichment
- Yes
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