Bug 2542600 (CVE-2026-101913) - CVE-2026-101913 ip-address: ip-address: Security bypass via incomplete IPv6 link-local address validation
Summary: CVE-2026-101913 ip-address: ip-address: Security bypass via incomplete IPv6 l...
Keywords:
Status: NEW
Alias: CVE-2026-101913
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-28 18:05 UTC by OSIDB Bzimport
Modified: 2026-10-15 21:02 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-28 18:05:35 UTC 
ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.5.1, the Address6 isLinkLocal method in src/ipv6.ts recognizes only fe80::/64 instead of the complete fe80::/10 IPv6 link-local range. An attacker-controlled address elsewhere in fe80::/10 can therefore pass a trust-boundary check that relies on isLinkLocal. The same address is identified as link-local by getType and getScope, exposing the inconsistent classification. A successful bypass can reach an on-link host outside the intended trust boundary. This issue is fixed in version 10.5.1.
Note You need to log in before you can comment on or make changes to this bug.