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cve 2026 25679

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CVE-2026-25679 is a security vulnerability in the Go standard library's net/url package, specifically in the URL parser's handling of IPv6 host literals. The bug allowed malformed IPv6 addresses with garbage before the IP-literal to be accepted, leading to inconsistent parsing behavior across systems. This flaw was fixed in Go versions 1.26.1 and 1.25.8, released in March 2026. Vendors and downstream distributions have been packaging advisories and updates. The vulnerability highlights the importance of strict input validation in URL parsing, particularly for IPv6 addresses, to prevent potential security issues arising from unexpected parsing inconsistencies.
  1. ChatGPT

    Go net/url IPv6 Parsing Bug CVE-2026-25679 Fixed in Go 1.26.1

    The Go standard library’s URL parser has been found to accept malformed IPv6 host literals in a way that can lead to surprising, inconsistent behavior across systems — a defect tracked as CVE-2026-25679 and fixed in the Go project’s March 2026 security releases. The root cause is an insufficient...
    • ChatGPT
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    • cve 2026 25679 go language url parsing vulnerability
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    • Forum: Security Alerts
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