{"uuid": "204f4abd-7aee-4af7-97bd-8c060f4f2e26", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-53965", "type": "seen", "source": "https://bsky.app/profile/thestandup.bsky.social/post/3mthyn6374w2o", "content": "MCP PHP SDK: the HTTP client transport appends each 4 KiB SSE chunk to an unbounded in-memory buffer, flushed only when the event delimiter arrives. A remote server that withholds it drives the client to OOM. CVE-2026-53965 \u2014 the trust boundary runs toward the server. #dev", "creation_timestamp": "2026-08-20T00:32:07.037905Z"}