CVE-2026-49140

Nanobot prior to version 0.2.1 contains a denial of service vulnerability in the Matrix channel media download handler that allows authenticated room members to exhaust process memory and bandwidth by sending media events with missing or invalid size metadata. Attackers can send multiple concurre...

CVE-2026-49140 Nanobot < 0.2.1 Denial of Service via Matrix Media Download Handler

Nanobot prior to version 0.2.1 contains a denial of service vulnerability in the Matrix channel media download handler that allows authenticated room members to exhaust process memory and bandwidth by sending media events with missing or invalid size metadata. Attackers can send multiple concurre...

PT-2026-45562

Name of the Vulnerable Software and Affected Versions Nanobot versions prior to 0.2.1 Description A denial of service issue exists in the Matrix channel media download handler. Authenticated room members can exhaust process memory and bandwidth by sending media events that lack or contain invalid...