CVE-2026-59887

highCVSS 7.5covered by 1 sourcefirst seen 2026-07-08

linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailto: schema validator used by .test() and .match() can be invoked at every mailto: occurrence and scan the remaining input through src_email_name in lib/re.mjs, causing O(n^2) CPU consumption on crafted user text. This issue is fixed in version 5.0.2.

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Exploitation outlook

Low exploitation risk0.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-59887: linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailt…nvd · 2026-07-08

External references

NVD record for CVE-2026-59887

CVE.org record

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