Security Bulletin: This Power System update is being released to address CVE-2026-43198

Summary An IPv6 listening socket handing an IPv4-mapped IPv6 connection request results in race condition which may result in loss of integrity, confidentiality, and availability. Vulnerability Details CVEID:CVE-2026-43198 DESCRIPTION: In the Linux kernel, the following vulnerability has been...

ip-address: Address6.isLinkLocal() recognizes fe80::/64 rather than fe80::/10, allowing SSRF and trust-boundary bypass to on-link hosts

Summary Address6.isLinkLocal recognizes fe80::/64 rather than fe80::/10. Link-local unicast is the whole /10 under RFC 4291 §2.4 and the IANA IPv6 Special-Purpose Address Registry, so the method returns false for every link-local address outside the one /64 that stateless address autoconfiguratio...

GHSA-RPW4-54J3-4H4Q ip-address: Address6.isLinkLocal() recognizes fe80::/64 rather than fe80::/10, allowing SSRF and trust-boundary bypass to on-link hosts

Summary Address6.isLinkLocal recognizes fe80::/64 rather than fe80::/10. Link-local unicast is the whole /10 under RFC 4291 §2.4 and the IANA IPv6 Special-Purpose Address Registry, so the method returns false for every link-local address outside the one /64 that stateless address autoconfiguratio...

GHSA-2VR4-CQ9G-PVRC ip-address: no classifier recognizes the NAT64 local-use range 64:ff9b:1::/48, allowing SSRF and trust-boundary bypass

Summary No classifier on Address6 recognizes the NAT64 local-use range 64:ff9b:1::/48 RFC 8215. isPrivate, isLoopback, isLinkLocal and their siblings all return false for every address in it, so an internal IPv4 destination written through a local-use NAT64 prefix 64:ff9b:1:7f00:0:100:: for...

Improper Validation of Specified Type of Input

Overview org.webjars.npm:ip-address is an A library for parsing IPv4 and IPv6 IP addresses in node and the browser. Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via isHostInSubnet and isInSubnet which delegates to it, which compares masked...

Improper Validation of Specified Type of Input

Overview ip-address is an A library for parsing IPv4 and IPv6 IP addresses in node and the browser. Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input via isHostInSubnet and isInSubnet which delegates to it, which compares masked binary strings...

Incorrect Behavior Order

Overview org.webjars.npm:ip-address is an A library for parsing IPv4 and IPv6 IP addresses in node and the browser. Affected versions of this package are vulnerable to Incorrect Behavior Order via the isLinkLocal method, which incorrectly compared only the first 64 bits of an IPv6 address against...

Server-side Request Forgery (SSRF)

Overview org.webjars.npm:ip-address is an A library for parsing IPv4 and IPv6 IP addresses in node and the browser. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via isPrivate in src/ipv6.ts, which fails to classify addresses in the RFC 8215 NAT64 local-use...

Server-side Request Forgery (SSRF)

Overview ip-address is an A library for parsing IPv4 and IPv6 IP addresses in node and the browser. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via isPrivate in src/ipv6.ts, which fails to classify addresses in the RFC 8215 NAT64 local-use range...

Important: Red Hat Security Advisory: kpatch-patch-4_18_0-553_109_1, kpatch-patch-4_18_0-553_125_1, kpatch-patch-4_18_0-553_158_1, kpatch-patch-4_18_0-553_72_1, and kpatch-patch-4_18_0-553_85_1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

kernel: net: ipv6: use-after-free in fib6_rule_suppress due to stale res->rt6 pointer

A use-after-free vulnerability was found in the Linux kernel's IPv6 FIB rule lookup path. In fib6rulesuppress, when a route is suppressed and released via ip6rtputflags, the res-rt6 pointer is not cleared. If no later rule supplies a replacement route, fib6rulelookup returns the stale freed rt6in...

CVE-2026-101910

A flaw was found in ip-address. The address classification mechanism fails to identify the local-use Network Address Translation NAT64 range as private. A remote attacker can exploit this by submitting an internal address formatted within this IPv6 prefix to an application that relies on the...

CVE-2026-101913

A flaw was found in ip-address. The library fails to validate the complete range of IPv6 link-local addresses during address classification checks. A remote attacker can provide a specially crafted IPv6 address to bypass security controls that rely on this verification. Successful exploitation ca...

CVE-2026-101912

A flaw was found in the ip-address library. This vulnerability allows a remote attacker to bypass security restrictions, such as Internet Protocol IP allowlists or denylists. The library's subnet containment checks fail to verify whether the compared addresses belong to the same address family,...

CVE-2026-101911

A flaw was found in the ip-address library. A remote attacker can exploit this vulnerability by supplying an excessively large IPv6 address string to an application that parses input without length limits. The parser attempts to process the unbounded input and generate disproportionately large...

CVE-2026-101913

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...

DEBIAN-CVE-2026-101913

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...

CVE-2026-101911

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the Address6 constructor, Address6.isValid, and parse code in src/ipv6.ts accept unbounded strings and expand invalid characters through REBADCHARACTERS into large diagnostics. Material...

DEBIAN-CVE-2026-101911

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the Address6 constructor, Address6.isValid, and parse code in src/ipv6.ts accept unbounded strings and expand invalid characters through REBADCHARACTERS into large diagnostics. Material...

DEBIAN-CVE-2026-101910

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. From 10.2.0 until 10.5.1, the Address6 isPrivate classifier in src/ipv6.ts does not recognize the NAT64 local-use range 64:ff9b:1::/48. Applications that combine isPrivate, isLoopback, and isLinkLocal for ...