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CVE-2026-25679 is an input-validation flaw in the Go standard library's net/url package, specifically in url.Parse. The parser insufficiently validates the URL host or authority component and accepts certain malformed URLs as valid. In the reported cases, garbage preceding an IPv6 IP-literal in the authority can be treated as ignorable rather than causing the URL to be rejected. As a result, applications that rely on net/url.Parse for strict URL syntax validation may incorrectly accept malformed attacker-supplied URLs and then process them as legitimate endpoints.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
149 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An incorrect parsing vulnerability in Go's net/url affecting IPv6 host literals.
An incorrect parsing vulnerability in Go's net/url package involving IPv6 host literals.
A Go net/url parsing vulnerability involving incorrect handling of IPv6 host literals.
A Go net/url parsing vulnerability involving incorrect handling of IPv6 host literals.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.