PT-2026-45562 · Hkuds · Nanobot

Hinotoi-Agent · Publicado 2026-06-01 · Atualizado 2026-06-01 · CVE-2026-49140

NVD

CVSS v3.1

4.3

Média

Vetor base

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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 concurrent Matrix media events with omitted or invalid declared sizes to trigger simultaneous large media downloads that fully materialize response bodies before post-download rejection, consuming process resources until service degradation occurs.

Exploit

Correção

Allocation of Resources Without Limits

Enumeração de Fraquezas

CWE-770

Identificadores relacionados

CVE-2026-49140

Produtos afetados

Nanobot

Referências · 5

• 🔥 https://github.com/HKUDS/nanobot/pull/4106 · Exploit
• https://github.com/HKUDS/nanobot/releases/tag/v0.2.1 · Nota
• https://github.com/HKUDS/nanobot/commit/1d4000560dfff1acb83f5c5ca8ef3ab1f092bd14 · Correção
• https://nvd.nist.gov/vuln/detail/CVE-2026-49140 · Nota de Segurança
• https://vulncheck.com/advisories/nanobot-denial-of-service-via-matrix-media-download-handler · Nota