CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
Allocation of Resources Without Limits or Throttling in ueberauth guardian allows denial of service via unbounded atom creation from attacker-influenced binary input. Guardian.Plug.Keys derives connection and session namespace keys by passing arbitrary binaries to String.to_atom/1. base_key/1 in lib/guardian/plug/keys.ex converts any binary into the atom :"guardian_<input>", and the derived helpers claims_key/1, resource_key/1, and token_key/1 create a second atom on top of that. key_from_other/1 likewise converts a regex-captured binary through String.to_atom/1. The public specs advertise String.t() as a valid argument, so passing a string is documented usage, and higher-level entry points such as Guardian.Plug.current_token(conn, key: key) thread the caller-supplied key straight into these functions. String.to_atom/1 creates a brand-new atom for every previously unseen binary, atoms are never garbage collected, and the BEAM atom table is fixed at roughly 1,048,576 entries by default. An application that routes attacker-influenced data (a tenant identifier, header, or other request input) into a Guardian key therefore mints one permanent atom per distinct value. A modest stream of varied, unauthenticated input permanently consumes the atom table and crashes the BEAM node, taking down every application running on it. This issue affects guardian: from 0.1.0 before 2.4.1.
Засегнати продукти
- ueberauth guardian: 0.1.0 преди 2.4.1
- ueberauth guardian: 7126fa433afc2563fcac0c9aa35193965f8fd5f8 преди 2952657e42e6341a67e6aaad09d8f0b40ae917cb
Вид слабост
История
- 1 август 2026 Публикувано
Други уязвимости в ueberauth guardian
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-54894
- https://nvd.nist.gov/vuln/detail/CVE-2026-54894
- https://github.com/ueberauth/guardian/security/advisories/GHSA-xqch-c77q-rgh5
- https://cna.erlef.org/cves/CVE-2026-54894.html
- https://osv.dev/vulnerability/EEF-CVE-2026-54894
- https://github.com/ueberauth/guardian/commit/2952657e42e6341a67e6aaad09d8f0b40ae917cb