https://www.jahanzaib.ai/blog/rejetto-hfs-cve-2026-61500-mythos Jahanzaib Ahmed en 2026-10-05T20:51:27.000Z CVE-2026-61500: Rejetto HFS Fixed in July, Attacked a Day After the Mythos Write Up ai news, anthropic, mythos, ai-security, node.js, vulnerability