CVE-2026-56860

UNKNOWN 0.0

Avoid quadratic complexity in resolvePath in net/url

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.

Vendor	go standard library
Product	net/url
Published	Aug 13, 2026

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Affected Versions

Go standard library / net/url

0 < 1.25.13 1.26.0-0 < 1.26.6 1.27.0-0 < 1.27.0-rc.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

go.dev: https://go.dev/cl/803681 go.dev: https://go.dev/issue/80494 groups.google.com: https://groups.google.com/g/golang-announce/c/94pEornpRlI pkg.go.dev: https://pkg.go.dev/vuln/GO-2026-6218