CVE-2026-256797.5HighCWE-1286

CVE-2026-25679: Incorrect parsing of IPv6 host literals in net/url

Go standard library · net/url

Vendor fix available · Affected: Go standard library net/url · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.8%probability of exploitation in the next 30 days

58th percentile

050100

Higher than 58% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Go standard library · net/urlbefore 1.25.8; from 1.26.0-0 before 1.26.1

On the Atlas

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Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Validation of Syntactic Correctness of Input · Input Validation and Logic
Vendor: Go standard library
Published: March 2026
Band: Unlikely (under 1%), March 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-25679 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

28 more references are in the CVE record.