CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и след действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
ASTEVAL is an evaluator of Python expressions and statements. Prior to 1.0.9, FROM_PY in asteval/astutils.py exposes BaseException, SystemExit, KeyboardInterrupt, and GeneratorExit to expressions evaluated by asteval.Interpreter.eval(), while run() and eval() in asteval/asteval.py catch Exception rather than these non-Exception BaseException subclasses. When an attacker-controlled expression raises one of these classes, on_raise() passes the class to raise_exception(), and the resulting exception bypasses the interpreter's safety handlers and propagates into the calling application. A consuming service that evaluates untrusted expressions can therefore be terminated or have signal and cleanup handling disrupted, causing denial of service. The separately documented read-only open() capability is not part of this vulnerability. This issue is fixed in version 1.0.9.
Засегнати продукти
- lmfit asteval: < 1.0.9
Вид слабост
История
- 14 септември 2026 Публикувано
Други уязвимости в lmfit asteval
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-55244
- https://nvd.nist.gov/vuln/detail/CVE-2026-55244
- https://github.com/lmfit/asteval/security/advisories/GHSA-89v8-rhwq-hf77
- https://github.com/lmfit/asteval/pull/153
- https://github.com/lmfit/asteval/commit/9c625b3674f8d05f206708bb85afca17a87694a4
- https://github.com/lmfit/asteval/commit/c49c99a67acb63eb7410231932250bd820380e45
- https://github.com/lmfit/asteval/releases/tag/1.0.9