CVE-2026-49762 Affecting elixir-lang package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.15% (5th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN11-ELIXIRLANG-17279538
  • published10 Jun 2026
  • disclosed9 Jun 2026

Introduced: 9 Jun 2026

CVE-2026-49762  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 elixir-lang.

NVD Description

Note: Versions mentioned in the description apply only to the upstream elixir-lang package and not the elixir-lang package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1