CVE-2026-93226: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-wvgv-43w8-m5vv
Published
Advisory Summary

CVE-2026-93226 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-2026-93226 at a Glance

CVE Identifier CVE-2026-93226
GHSA Identifier GHSA-wvgv-43w8-m5vv
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-93226

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-2026-93226, 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: use RCU iterator to dump route exceptions rt6_nh_dump_exceptions() uses hlist_for_each_entry() to iterate over RCU-protected exception lists. The caller holds rcu_read_lock(), but does not hold rt6_exception_lock, so rt6_insert_exception() can concurrently add an entry with hlist_add_head_rcu(). KCSAN reports this race (irrelevant details omitted): ================================================================== BUG: KCSAN: data-race in rt6_insert_exception / rt6_nh_dump_exceptions write (marked) to 0xffff8a7c44c59620 of 8 bytes by interrupt on cpu 5: rt6_insert_exception+0x3bb/0x760 __ip6_rt_update_pmtu+0x4fe/0x750 ip6_sk_update_pmtu+0x19a/0x3b0 udpv6_err+0x3ff/0x800 icmpv6_notify+0x1e1/0x440 icmpv6_rcv+0x8c0/0xab0 ip6_protocol_deliver_rcu+0x616/0x840 ip6_input_finish+0xb9/0x160 ... entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff8a7c44c59620 of 8 bytes by task 549 on cpu 14: rt6_nh_dump_exceptions+0xb3/0x260 rt6_dump_route+0x53e/0x5f0 fib6_dump_node+0x6d/0xf0 fib6_walk_continue+0x290/0x2d0 fib6_dump_table+0x28d/0x360 inet6_dump_fib+0x37d/0x620 rtnl_dumpit+0x7b/0xd0 netlink_dump+0x3ae/0x7e0 ... entry_SYSCALL_64_after_hwframe+0x77/0x7f 4 locks held by dumper/549: ... #1: (rcu_read_lock){....}-{1:3}, at: inet6_dump_fib+0x88/0x620 #2: (&tb->tb6_lock){+.-.}-{3:3}, at: fib6_dump_table+0x1e9/0x360 #3: (rcu_read_lock){....}-{1:3}, at: rt6_dump_route+0x483/0x5f0 value changed: 0xffff8a7c44e05700 -> 0xffff8a7c45d60100 Reported by Kernel Concurrency Sanitizer on: CPU: 14 UID: 0 PID: 549 Comm: dumper Not tainted 7.2.0-rc7-virtme #38 PREEMPT(lazy) ... Use hlist_for_each_entry_rcu() to safely iterate over the exception list.

References

Frequently Asked Questions

What is CVE-2026-93226?
CVE-2026-93226 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-2026-93226?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-93226?
CVE-2026-93226 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93226?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-wvgv-43w8-m5vv",
  "modified" : "2026-09-24T18:31:23Z",
  "published" : "2026-09-24T18:31:23Z",
  "aliases" : [ "CVE-2026-93226" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: use RCU iterator to dump route exceptions\n\nrt6_nh_dump_exceptions() uses hlist_for_each_entry() to iterate over\nRCU-protected exception lists. The caller holds rcu_read_lock(), but does\nnot hold rt6_exception_lock, so rt6_insert_exception() can concurrently\nadd an entry with hlist_add_head_rcu().\n\nKCSAN reports this race (irrelevant details omitted):\n\n  ==================================================================\n  BUG: KCSAN: data-race in rt6_insert_exception / rt6_nh_dump_exceptions\n\n  write (marked) to 0xffff8a7c44c59620 of 8 bytes by interrupt on cpu 5:\n    rt6_insert_exception+0x3bb/0x760\n    __ip6_rt_update_pmtu+0x4fe/0x750\n    ip6_sk_update_pmtu+0x19a/0x3b0\n    udpv6_err+0x3ff/0x800\n    icmpv6_notify+0x1e1/0x440\n    icmpv6_rcv+0x8c0/0xab0\n    ip6_protocol_deliver_rcu+0x616/0x840\n    ip6_input_finish+0xb9/0x160\n    ...\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n  read to 0xffff8a7c44c59620 of 8 bytes by task 549 on cpu 14:\n    rt6_nh_dump_exceptions+0xb3/0x260\n    rt6_dump_route+0x53e/0x5f0\n    fib6_dump_node+0x6d/0xf0\n    fib6_walk_continue+0x290/0x2d0\n    fib6_dump_table+0x28d/0x360\n    inet6_dump_fib+0x37d/0x620\n    rtnl_dumpit+0x7b/0xd0\n    netlink_dump+0x3ae/0x7e0\n    ...\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n  4 locks held by dumper/549:\n    ...\n    #1: (rcu_read_lock){....}-{1:3}, at: inet6_dump_fib+0x88/0x620\n    #2: (&tb->tb6_lock){+.-.}-{3:3}, at: fib6_dump_table+0x1e9/0x360\n    #3: (rcu_read_lock){....}-{1:3}, at: rt6_dump_route+0x483/0x5f0\n\n  value changed: 0xffff8a7c44e05700 -> 0xffff8a7c45d60100\n\n  Reported by Kernel Concurrency Sanitizer on:\n  CPU: 14 UID: 0 PID: 549 Comm: dumper Not tainted\n  7.2.0-rc7-virtme #38 PREEMPT(lazy)\n  ...\n\nUse hlist_for_each_entry_rcu() to safely iterate over the exception list.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93226"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3665abc3d2ae8a78cb67f858e848481432ec75db"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/47cdab0d51aaa9bd85f8e4904585bd5bd4df4488"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6bd3f94ed858f2d072627546b4cdf712b0f8ea88"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9c6be625e1a7258e845d6193b3b6b084a00f8e9e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a602cd128d17a793e12888edc8eda85821ede7e1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dffbfb3117138e8e0e09d05f507bd36ca1f696e5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/eda56ee17713f9dd834b922f7dbfa2e25fa6358c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f6b1b15848fd91fe122dac0d19d3d666e35075b6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T16:17:17Z"
  }
}