CVE-2026-98532: Software Security Vulnerability Vulnerability

UNKNOWN

Advisory Identifier: GHSA-75wf-hf48-gmfv

Published 2026-10-18

Advisory Summary

CVE-2026-98532 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98532 at a Glance

CVE Identifier CVE-2026-98532

GHSA Identifier GHSA-75wf-hf48-gmfv

Severity N/A

CVSS v3.1 Base Score N/A

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-10-18

Last Updated 2026-10-18

How to Fix CVE-2026-98532

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-98532, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: ipv6: do not let ipv6_find_hdr() return an offset past the packet end ipv6_find_hdr() walks the extension header chain, skipping each header by the length that header itself declares. ipv6_optlen() returns up to 2048, and the skip is never checked against skb->len, so the offset stored in *offset can point past the end of the packet. openvswitch installs that offset as the transport header, and update_ipv6_checksum() then reads and writes the transport checksum field out of bounds: BUG: KASAN: slab-use-after-free in inet_proto_csum_replace16+0x445/0x470 Read of size 2 at addr ffff88810b754b06 by task ovs_ipv6_oob/629 CPU: 4 UID: 1000 PID: 629 Comm: ovs_ipv6_oob Tainted: G N 7.3.0-rc3+ #348 Call Trace: inet_proto_csum_replace16+0x445/0x470 set_ipv6_addr+0x3dd/0x460 do_execute_actions+0x6a3d/0x7c40 ovs_execute_actions+0xfd/0x480 ovs_packet_cmd_execute+0xc38/0xf20 genl_rcv_msg+0x59e/0x870 netlink_rcv_skb+0x18b/0x450 genl_rcv+0x2d/0x40 netlink_unicast+0x6bc/0xa20 The buggy address belongs to the object at ffff88810b754980 which belongs to the cache skbuff_small_head of size 704 The buggy address is located 390 bytes inside of freed 704-byte region [ffff88810b754980, ffff88810b754c40) Other callers use that offset too, so bound it here rather than in one caller. Reject a header whose declared length does not fit in the packet. ipv6_find_hdr() already fails with -EBADMSG on a malformed chain, so this adds no new failure mode.

References

NVD — CVE-2026-98532 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-98532

git.kernel.org/stable/c/1c70275ca8... WEB

https://git.kernel.org/stable/c/1c70275ca87e769e1a52abc644d61372d8c016cb

git.kernel.org/stable/c/1d42828565... WEB

https://git.kernel.org/stable/c/1d42828565889632068fbc2983c34d57c66af4e0

git.kernel.org/stable/c/4254d5878c... WEB

https://git.kernel.org/stable/c/4254d5878c320c19961dd0b8e1d0aca4800d8b7d

git.kernel.org/stable/c/531255de89... WEB

https://git.kernel.org/stable/c/531255de8971c06d5d5986f85fdc2525d707ba71

git.kernel.org/stable/c/543354c6ef... WEB

https://git.kernel.org/stable/c/543354c6efb27eae3372a3a9674aeaa2a86e2b2c

git.kernel.org/stable/c/ca96b38730... WEB

https://git.kernel.org/stable/c/ca96b38730e31357ef4a9d76af1336958ac670d7

git.kernel.org/stable/c/dc92cb972e... WEB

https://git.kernel.org/stable/c/dc92cb972e86790b8078337ec41015b748b8f8e5

git.kernel.org/stable/c/ee319bd3a0... WEB

https://git.kernel.org/stable/c/ee319bd3a0e976af5087cbe59ebc50a66f31d202

Frequently Asked Questions

What is CVE-2026-98532?

CVE-2026-98532 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.

Which Software versions are affected?

Affected versions include releases prior to current release patches.

What version fixes CVE-2026-98532?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What CWE is associated with CVE-2026-98532?

CVE-2026-98532 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-98532?

Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-75wf-hf48-gmfv",
  "modified" : "2026-10-18T18:31:52Z",
  "published" : "2026-10-18T18:31:52Z",
  "aliases" : [ "CVE-2026-98532" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: do not let ipv6_find_hdr() return an offset past the packet end\n\nipv6_find_hdr() walks the extension header chain, skipping each header by\nthe length that header itself declares.  ipv6_optlen() returns up to 2048,\nand the skip is never checked against skb->len, so the offset stored in\n*offset can point past the end of the packet.\n\nopenvswitch installs that offset as the transport header, and\nupdate_ipv6_checksum() then reads and writes the transport checksum field\nout of bounds:\n\n  BUG: KASAN: slab-use-after-free in inet_proto_csum_replace16+0x445/0x470\n  Read of size 2 at addr ffff88810b754b06 by task ovs_ipv6_oob/629\n  CPU: 4 UID: 1000 PID: 629 Comm: ovs_ipv6_oob Tainted: G N 7.3.0-rc3+ #348\n  Call Trace:\n   inet_proto_csum_replace16+0x445/0x470\n   set_ipv6_addr+0x3dd/0x460\n   do_execute_actions+0x6a3d/0x7c40\n   ovs_execute_actions+0xfd/0x480\n   ovs_packet_cmd_execute+0xc38/0xf20\n   genl_rcv_msg+0x59e/0x870\n   netlink_rcv_skb+0x18b/0x450\n   genl_rcv+0x2d/0x40\n   netlink_unicast+0x6bc/0xa20\n\n  The buggy address belongs to the object at ffff88810b754980\n   which belongs to the cache skbuff_small_head of size 704\n  The buggy address is located 390 bytes inside of\n   freed 704-byte region [ffff88810b754980, ffff88810b754c40)\n\nOther callers use that offset too, so bound it here rather than in one\ncaller.\n\nReject a header whose declared length does not fit in the packet.\nipv6_find_hdr() already fails with -EBADMSG on a malformed chain, so this\nadds no new failure mode.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98532"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1c70275ca87e769e1a52abc644d61372d8c016cb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1d42828565889632068fbc2983c34d57c66af4e0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4254d5878c320c19961dd0b8e1d0aca4800d8b7d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/531255de8971c06d5d5986f85fdc2525d707ba71"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/543354c6efb27eae3372a3a9674aeaa2a86e2b2c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ca96b38730e31357ef4a9d76af1336958ac670d7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dc92cb972e86790b8078337ec41015b748b8f8e5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ee319bd3a0e976af5087cbe59ebc50a66f31d202"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:04Z"
  }
}

Advisory Metadata

Source ID: GHSA-75wf-hf48-gmfv
Schema Version: 1.4.0
Published: 2026-10-18 18:31
Last Modified: 2026-10-18 18:31
Database Record File: advisories/unreviewed/2026/10/GHSA-75wf-hf48-gmfv/GHSA-75wf-hf48-gmfv.json