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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1872 advisory.

    gitoxide is an implementation of git written in Rust. Prior to 0.21.1, a malicious tree can be constructed     that will, when checked out with gitoxide, permit writing an attacker-controlled symlink into any existing     directory the user has write access to. During checkout, all symlink index entries are deferred and     created after regular files using a single shared gix_worktree::Stack. Internally, this uses a     gix_fs::Stack. gix_fs::Stack::make_relative_path_current() caches validated path prefixes: when the     previously-processed leaf component exactly matches the leading component(s) of the next path, the leaf-     to-directory transition at gix-fs/src/stack.rs invokes only delegate.push_directory(), never     delegate.push(). In gix_worktree::stack::delegate::StackDelegate, when the state member is     State::CreateDirectoryAndAttributesStack, Attributes::push_directory() only loads attributes (from the     ODB, in the clone case), and does not perform any other checks. The on-disk symlink_metadata() check and     unlink-on-collision live in StackDelegate::push()'s invocation of create_leading_directory(), which is     therefore bypassed for the cached prefix. The final symlink is created with plain     std::os::unix::fs::symlink, which follows symlinks in parent directories. Therefore, it's possible to     provide a tree with duplicate symlink and directory entries that exploits this. This vulnerability is     fixed in 0.21.1. (CVE-2026-44471)

    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)

    A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function     userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len     leads to integer overflow. The attack may be launched remotely. The name of the patch is     256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.
    (CVE-2026-7598)

Tenable has extracted the preceding description block directly from the tested product 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 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 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)

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

ID	Name	Product	Family	Severity
322058	Amazon Linux 2023 : cargo-c (ALAS2023-2026-1872)	Nessus	Amazon Linux Local Security Checks	medium
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
316872	Linux Distros Unpatched Vulnerability : CVE-2026-5222	Nessus	Misc.	low

Detections

Analytics

CVE-2026-5222

low

Tenable Plugins

medium

medium

medium

medium

medium

low