{"items":[{"id":"NVI-00015197","kind":"vulnerability","title":"Netty: Denial of Service in XmlFrameDecoder via CPU Exhaustion","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-v74w-7mr3-4qg3","CVE-2026-73507"],"plain_summary":"GitHub lists this reviewed advisory for io.netty:netty-codec-xml, io.netty:netty-codec-xml. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-3b599fa5b255216769f27880112130b2"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-08-13T14:25:44.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-3b599fa5b255216769f27880112130b2"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-3b599fa5b255216769f27880112130b2","url":"https://github.com/advisories/GHSA-v74w-7mr3-4qg3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-v74w-7mr3-4qg3","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T20:16:47.162Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3b599fa5b255216769f27880112130b2"],"technology":"io.netty:netty-codec-xml","known_exclusions":[],"conditions_summary":"### Summary\nAn attacker can cause Denial of Service by sending a specially crafted malicious XML payload (e.g., repeated ``.\nBecause the parser state is not saved between `decode()` invocations, an attacker can trickle-feed a payload of `</` characters. This forces the decoder to repeatedly rescan the entire accumulated buffer. A 1MB `maxFrameLength` is enough to completely hang a server's thread while it loops endlessly.\n\n### Impact\nDenial of Service via CPU Exhaustion. Any application utilizing Netty's XmlFrameDecoder is impacted. An unauthenticated remote attacker can exploit this flaw by sending a modest amount of malformed XML data to an exposed port.","public_affected_ranges":[">= 4.2.0.Final, <= 4.2.15.Final"]},{"certainty":"source_listed","source_ids":["sr-3b599fa5b255216769f27880112130b2"],"technology":"io.netty:netty-codec-xml","known_exclusions":[],"conditions_summary":"### Summary\nAn attacker can cause Denial of Service by sending a specially crafted malicious XML payload (e.g., repeated ``.\nBecause the parser state is not saved between `decode()` invocations, an attacker can trickle-feed a payload of `</` characters. This forces the decoder to repeatedly rescan the entire accumulated buffer. A 1MB `maxFrameLength` is enough to completely hang a server's thread while it loops endlessly.\n\n### Impact\nDenial of Service via CPU Exhaustion. Any application utilizing Netty's XmlFrameDecoder is impacted. An unauthenticated remote attacker can exploit this flaw by sending a modest amount of malformed XML data to an exposed port.","public_affected_ranges":["<= 4.1.135.Final"]}],"null_published_at":"2026-11-03T10:03:26.560Z","source_updated_at":"2026-08-13T14:25:44.000Z","source_disclosed_at":"2026-07-24T16:53:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-02T20:16:47.162Z"}],"next_cursor":null,"snapshot_revision":"42594"}