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Cisco has published an advisory covering multiple high-severity vulnerabilities in Node.js and the Brotli library that may affect certain Cisco products. Node.js issued fixes on Oct. 21, 2026 for supported release lines 22.x, 24.x, and 26.x, addressing issues tied to Brotli decoding, DNS resolution, and TLS certificate validation.
Microsoft has published an entry for CVE-2026-34591, describing a path traversal issue in Poetry’s wheel handling that may enable arbitrary file write. The vulnerability is listed in the Microsoft Security Response Center (MSRC) update guide as of 2026-04-29.
SANS Internet Storm Center’s Stormcast (Jan 23, 2026) highlights active, ongoing “internet noise” and security-relevant developments security teams should track daily. Telecom and wholesale network operators should treat the items as early-warning signals for scanning, exploitation attempts, and abuse trends that can quickly impact shared infrastructure.