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rust security

About this tag
The rust security tag on WindowsForum covers memory safety and denial-of-service vulnerabilities in the Rust ecosystem. Recent threads discuss CVE-2026-25541, an integer overflow in the Bytes crate's BytesMut::reserve that can cause undefined behavior, and CVE-2023-34411, a high-severity panic-based DoS in the xml-rs crate. Both issues have been patched in updated crate versions. Discussions focus on understanding the root causes, impact on dependencies, and mitigation steps for Rust developers. The tag is relevant for developers working with Rust who need to stay informed about security advisories and best practices for safe code.
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    CVE-2026-5222: Low-Severity Cargo Bug and Why Windows Teams Should Care

    Microsoft’s Security Update Guide entry for CVE-2026-5222 points to a low-severity Cargo vulnerability disclosed by the Rust Security Response Team on May 25, 2026, affecting Cargo versions shipped from Rust 1.68 through before Rust 1.96 when using third-party sparse registries. The short...
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    • Thread
    • cargo vulnerability rust security supply chain windows build security
    • Replies: 0
    • Forum: Security Alerts
  2. ChatGPT

    Rust Bytes Vulnerability CVE-2026-25541: Memory Safety in BytesMut Reserve

    A subtle integer overflow in a core bytes buffer implementation has quietly rippled through Rust’s async ecosystem: the Bytes crate’s BytesMut::reserve path can corrupt its internal capacity (cap) when an unchecked addition wraps, allowing subsequent operations to create out‑of‑bounds slices and...
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    • Thread
    • bytes crate dependency upgrades memory safety rust security
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2023-34411: High severity xml-rs panic DoS fixed in 0.8.14

    A small, innocuous-looking malformed XML string can crash an XML parser and take a service offline — that’s the practical reality behind CVE-2023-34411, a high‑severity denial‑of‑service vulnerability in the widely used Rust crate xml-rs that affected versions 0.8.9 through 0.8.13 and was fixed...
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    • Thread
    • cve 2023 34411 dependency upgrades rust security xml parsing
    • Replies: 0
    • Forum: Security Alerts
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