CVE-2026-49762— Elixir 资源管理错误漏洞

Unbounded integer parsing in the Version module enables CPU and memory exhaustion denial of service

Uncontrolled Resource Consumption vulnerability in the Elixir standard library's Version module allows an attacker who controls a version string to cause a denial of service through CPU and memory exhaustion. The version parser converts numeric version components (major, minor, patch and numeric pre-release/build identifiers) to integers without bounding their length. A single large all-digit component therefore forces a super-linear, non-yielding base-10 to arbitrary-precision integer conversion (String.to_integer/1, i.e. :erlang.binary_to_integer/1) that pins a BEAM scheduler, and a larger component raises an uncaught SystemLimitError that crashes the calling process. A single moderately sized string (around one megabyte) is enough; no authentication is required. This is reachable from the public entry points Version.parse/1, Version.parse!/1, Version.match?/3, Version.compare/2, and Version.parse_requirement/1, which applications routinely call on untrusted input such as HTTP parameters, dependency-manifest fields, and package metadata. This vulnerability is associated with program files lib/version.ex and program routines 'Elixir.Version.Parser':parse_digits/2. This issue affects Elixir: from 1.5.0 before 1.20.1.

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未加控制的资源消耗(资源穷尽)

Elixir 资源管理错误漏洞

Elixir是The Elixir programming language开源的一门运行于BEAM虚拟机上的函数式编程语言。 Elixir 1.5.0至1.20.1之前版本存在资源管理错误漏洞，该漏洞源于标准库Version模块中存在不受控制的资源消耗问题，可能导致控制版本字符串的攻击者通过CPU和内存耗尽造成拒绝服务。

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