CVE-2026-105241

A flaw was found in Apache log4net. An attacker who can supply data that is recorded in system logs can submit unencodable Unicode characters, triggering an encoding error in the SmtpPickupDirAppender component. When this failure occurs, the application discards all buffered log messages in the...

Backdoor in the Loop: Compromising Agentic Search Via Malicious Retrievers

Agentic retrieval-augmented generation RAG interleaves reasoning with repeated retrieval, giving the retriever influence over both the evidence an agent observes and its subsequent search decisions. We study retriever backdoors that exploit this feedback loop and repurpose weak backdoor...