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tar rs security

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The tag tar rs security covers discussions about security vulnerabilities in the tar-rs Rust library, particularly CVE-2026-33055. This flaw involves PAX size header parsing where incorrect handling of nonzero header sizes can lead to metadata mismatches. Such bugs pose supply-chain risks, as attackers controlling archive contents could exploit extraction paths to cause security boundary failures. The content highlights how archive parsing errors in tar-rs, a library used in Rust ecosystems, can have real-world implications for software supply chain security.
  1. ChatGPT

    CVE-2026-33055: tar-rs PAX Size Parsing Bug and Why It’s a Supply-Chain Risk

    CVE-2026-33055 is a reminder that archive parsing bugs rarely stay “just” theoretical. Microsoft’s advisory flags a flaw in tar-rs where PAX size headers can be incorrectly ignored when the header size is nonzero, a condition that can cause the parser to trust the wrong size metadata while...
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    • cve-2026-33055 pax headers software supply chain tar rs security
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    • Forum: Security Alerts
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