CVE-2026-23121: Software Security Vulnerability Vulnerability
MODERATECVE-2026-23121 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.. Remediation is available in the latest vendor maintenance releases.
CVE-2026-23121 at a Glance
Security Impact
CVSS: 5.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
How to Fix CVE-2026-23121
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.
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:treeHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-23121, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:treeAnalyze 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 CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. 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
References
Frequently Asked Questions
What is CVE-2026-23121?
Which Software versions are affected?
What version fixes CVE-2026-23121?
What is the CVSS score of CVE-2026-23121?
What CWE is associated with CVE-2026-23121?
How can I check Maven dependencies for CVE-2026-23121?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-h3v4-524h-5jpx",
"modified" : "2026-03-18T15:30:40Z",
"published" : "2026-02-14T15:32:18Z",
"aliases" : [ "CVE-2026-23121" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nmISDN: annotate data-race around dev->work\n\ndev->work can re read locklessly in mISDN_read()\nand mISDN_poll(). Add READ_ONCE()/WRITE_ONCE() annotations.\n\nBUG: KCSAN: data-race in mISDN_ioctl / mISDN_read\n\nwrite to 0xffff88812d848280 of 4 bytes by task 10864 on cpu 1:\n misdn_add_timer drivers/isdn/mISDN/timerdev.c:175 [inline]\n mISDN_ioctl+0x2fb/0x550 drivers/isdn/mISDN/timerdev.c:233\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:597 [inline]\n __se_sys_ioctl+0xce/0x140 fs/ioctl.c:583\n __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:583\n x64_sys_call+0x14b0/0x3000 arch/x86/include/generated/asm/syscalls_64.h:17\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xd8/0x2c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nread to 0xffff88812d848280 of 4 bytes by task 10857 on cpu 0:\n mISDN_read+0x1f2/0x470 drivers/isdn/mISDN/timerdev.c:112\n do_loop_readv_writev fs/read_write.c:847 [inline]\n vfs_readv+0x3fb/0x690 fs/read_write.c:1020\n do_readv+0xe7/0x210 fs/read_write.c:1080\n __do_sys_readv fs/read_write.c:1165 [inline]\n __se_sys_readv fs/read_write.c:1162 [inline]\n __x64_sys_readv+0x45/0x50 fs/read_write.c:1162\n x64_sys_call+0x2831/0x3000 arch/x86/include/generated/asm/syscalls_64.h:20\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xd8/0x2c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nvalue changed: 0x00000000 -> 0x00000001",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-23121"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/13f3b3b87068898056db4c79ee67052fbde11d43"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/7ac345a93af31358e18e9606eb7b354691bf6757"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/8175dbf174d487afab81e936a862a8d9b8a1ccb6"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/aa6e33cd74ca4965f2bbcb025e0b672fb0168a69"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/accc3f8266d2a49881dbcf78c459477f4efa0ff3"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/d5d99cb9e0839093cd53aa3b28176fce2f820ca0"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/fc8ba17fd3337bd8b1913c30b95df0fee00d8fb7"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-362" ],
"severity" : "MODERATE",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-02-14T15:16:07Z"
}
}