CVE-2026-96612 Affecting erlang-hex package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published13 Oct 2026
- disclosed12 Oct 2026
Introduced: 12 Oct 2026
NewCVE-2026-96612 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest erlang-hex.
NVD Description
Note: Versions mentioned in the description apply only to the upstream erlang-hex package and not the erlang-hex package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in hexpm hex allows a malicious package publisher to delete a directory outside the project's deps directory and extract package files into it when a developer fetches dependencies.
A package release's requirements carry an app label that names the dependency's OTP application. Hex takes this label from the repository's signed registry and uses it as the dependency's application name without validating it (Hex.RemoteConverger.deps/2, Hex.Mix.to_lock/1). Mix derives the dependency's checkout directory as deps/<app>, and Hex.SCM.update/1 runs File.rm_rf!/1 on that directory and unpacks the package into it. hex.pm only checks the label's length, so a publisher can set it to a value such as ../../target. When a project depends on such a release directly or transitively, mix deps.get or mix deps.update deletes the directory the label resolves to and writes the labelled package's files there. This happens before any dependency code is compiled.
This issue affects hex: from 0.6.0 before 2.5.2.
References
- https://advisory.echohq.com/cve/CVE-2026-96612
- https://cna.erlef.org/cves/CVE-2026-96612.html
- https://github.com/hexpm/hex/commit/1b3e2ae8f0dd7273a2c2625b9e50b6c67c8568fb
- https://github.com/hexpm/hex/commit/380f87054e1bc08ee13d2b5311bc01f98dad2fc6
- https://github.com/hexpm/hex/commit/72279a8e2004b32b20d8767ff010c117193dd02c
- https://github.com/hexpm/hex/security/advisories/GHSA-2vjj-c5hr-6xc3
- https://osv.dev/vulnerability/EEF-CVE-2026-96612