CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
Allocation of Resources Without Limits or Throttling vulnerability in the HTTP/1.1 chunked body reader of mtrudel bandit allows an unauthenticated remote attacker to exhaust server memory and CPU via a request body made of many 1-byte chunks. The chunked reader in lib/bandit/http1/socket.ex keeps every chunk as its own list cell and binary term until IO.iodata_to_binary/1 joins them, and nothing limits the number of chunks. The :length option of read_body/2 counts only data bytes, so tiny chunks cost far more memory than their payload: 48 MB of 1-byte chunks grew one handler process to about 500 MB and took about 6 s of CPU. The route does not need to read the body, because on keep-alive connections ensure_completed/1 drains unread bodies through the same reader. This issue affects bandit: from 0.1.0 before 1.14.0.
Засегнати продукти
- mtrudel bandit: 0.1.0 преди 1.14.0
- mtrudel bandit: 7201270c34b90f6c9e15c0386c2bb802c0c72ab4 преди 220b9dfd27f9a21305be2afc75cbe585ddc24e7a
Вид слабост
История
- 26 октомври 2026 Публикувано
Други уязвимости в mtrudel bandit
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-111101
- https://nvd.nist.gov/vuln/detail/CVE-2026-111101
- https://github.com/mtrudel/bandit/security/advisories/GHSA-jwh3-j29h-qfmw
- https://cna.erlef.org/cves/CVE-2026-111101.html
- https://osv.dev/vulnerability/EEF-CVE-2026-111101
- https://github.com/mtrudel/bandit/commit/7201270c34b90f6c9e15c0386c2bb802c0c72ab4
- https://github.com/mtrudel/bandit/commit/220b9dfd27f9a21305be2afc75cbe585ddc24e7a