Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries, allowing a malicious crate to override the source code of another crate from the same registry. The severity of the vulnerability is **medium** for users of third-party registries. Users of crates.io are **not affected**, as crates.io forbids uploading crates containing any symlink.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d7436d12ae advisory.

    Update to Rust 1.96.0:

    * New `Range*` types
    * Assert matching patterns
    * Changes to WebAssembly targets
    * Stabilized APIs
    * Cargo CVE-2026-5222 and CVE-2026-5223 for third-party registries.

    See the [blog post](https://blog.rust-lang.org/2026/05/28/Rust-1.96.0/) and [release     notes](https://doc.rust-lang.org/stable/releases.html#version-1960-2026-05-28) for more details.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-e251935c8f advisory.

    Update to Rust 1.96.0:

    * New `Range*` types
    * Assert matching patterns
    * Changes to WebAssembly targets
    * Stabilized APIs
    * Cargo CVE-2026-5222 and CVE-2026-5223 for third-party registries.

    See the [blog post](https://blog.rust-lang.org/2026/05/28/Rust-1.96.0/) and [release     notes](https://doc.rust-lang.org/stable/releases.html#version-1960-2026-05-28) for more details.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - Cargo between 1.68 and 1.96 incorrectly normalized the URLs of third-party registries using the sparse
    index protocol. If a hosting provider allowed multiple registries to be hosted with arbitrary names within
    the same domain, an attacker able to publish crates in a registry could obtain the credentials of others
    users of the same registry. The severity of the vulnerability is **low**, due to the extremely niche
    requirements needed to achieve the attack. (CVE-2026-5222)

  - Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries,
    allowing a malicious crate to override the source code of another crate from the same registry. The
    severity of the vulnerability is **medium** for users of third-party registries. Users of crates.io are
    **not affected**, as crates.io forbids uploading crates containing any symlink. (CVE-2026-5223)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries,     allowing a malicious crate to override the source code of another crate from the same registry. The     severity of the vulnerability is **medium** for users of third-party registries. Users of crates.io are
    **not affected**, as crates.io forbids uploading crates containing any symlink. (CVE-2026-5223)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
320504	Fedora 43 : rust (2026-d7436d12ae)	Nessus	Fedora Local Security Checks	medium
319596	Fedora 44 : rust (2026-e251935c8f)	Nessus	Fedora Local Security Checks	medium
442512	Alpine: multiple cargo packages, multiple rust packages, multiple wasm-component-ld packages: security update to 1.91.1-r2	Tenable Cloud Security	Alpine Linux Local Security Checks	medium
442512	Alpine: multiple cargo packages, multiple rust packages, multiple wasm-component-ld packages: security update to 1.91.1-r2	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	medium
316871	Linux Distros Unpatched Vulnerability : CVE-2026-5223	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-5223

medium

Tenable Plugins

medium

medium

medium

medium

medium