CVE-2026-25679
Modified Modified - Updated After Analysis

Improper URL Validation in Go's url.Parse Causes Security Risks

Vulnerability report for CVE-2026-25679, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-03-06

Last updated on: 2026-07-02

Assigner: Go Project

Description

url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

CVSS Scores

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Meta Information

Published
2026-03-06
Last Modified
2026-07-02
Generated
2026-07-06
AI Q&A
2026-03-07
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
golang go to 1.25.8 (exc)
golang go 1.26.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-425 The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files.
CWE-1286 The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax.

Attack-Flow Graph

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Executive Summary

This vulnerability involves the url.Parse function, which insufficiently validated the host or authority component of URLs. As a result, it accepted some invalid URLs that should have been rejected.

Impact Analysis

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Compliance Impact

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Detection Guidance

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Mitigation Strategies

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EPSS Chart