Bug 2498146 (CVE-2026-59887) - CVE-2026-59887 linkify-it: linkify-it: Denial of Service via crafted mailto: links
Summary: CVE-2026-59887 linkify-it: linkify-it: Denial of Service via crafted mailto: ...
Keywords:
Status: NEW
Alias: CVE-2026-59887
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 17:01 UTC by OSIDB Bzimport
Modified: 2026-08-20 07:12 UTC (History)
36 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-07-08 17:01:55 UTC 
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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