CVE-2026-23279: Software Security Vulnerability Vulnerability
MODERATECVE-2026-23279 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.
CVE-2026-23279 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-2026-23279
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-2026-23279, 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-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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-2026-23279?
Which Software versions are affected?
What version fixes CVE-2026-23279?
What is the CVSS score of CVE-2026-23279?
What CWE is associated with CVE-2026-23279?
How can I check Maven dependencies for CVE-2026-23279?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-3969-jvq7-cjf4",
"modified" : "2026-10-15T03:35:20Z",
"published" : "2026-03-25T12:30:21Z",
"aliases" : [ "CVE-2026-23279" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix NULL pointer dereference in mesh_rx_csa_frame()\n\nIn mesh_rx_csa_frame(), elems->mesh_chansw_params_ie is dereferenced\nat lines 1638 and 1642 without a prior NULL check:\n\n ifmsh->chsw_ttl = elems->mesh_chansw_params_ie->mesh_ttl;\n ...\n pre_value = le16_to_cpu(elems->mesh_chansw_params_ie->mesh_pre_value);\n\nThe mesh_matches_local() check above only validates the Mesh ID,\nMesh Configuration, and Supported Rates IEs. It does not verify the\npresence of the Mesh Channel Switch Parameters IE (element ID 118).\nWhen a received CSA action frame omits that IE, ieee802_11_parse_elems()\nleaves elems->mesh_chansw_params_ie as NULL, and the unconditional\ndereference causes a kernel NULL pointer dereference.\n\nA remote mesh peer with an established peer link (PLINK_ESTAB) can\ntrigger this by sending a crafted SPECTRUM_MGMT/CHL_SWITCH action frame\nthat includes a matching Mesh ID and Mesh Configuration IE but omits the\nMesh Channel Switch Parameters IE. No authentication beyond the default\nopen mesh peering is required.\n\nCrash confirmed on kernel 6.17.0-5-generic via mac80211_hwsim:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n Oops: Oops: 0000 [#1] SMP NOPTI\n RIP: 0010:ieee80211_mesh_rx_queued_mgmt+0x143/0x2a0 [mac80211]\n CR2: 0000000000000000\n\nFix by adding a NULL check for mesh_chansw_params_ie after\nmesh_matches_local() returns, consistent with how other optional IEs\nare guarded throughout the mesh code.\n\nThe bug has been present since v3.13 (released 2014-01-19).",
"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-2026-23279"
}, {
"type" : "WEB",
"url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/017c1792525064a723971f0216e6ef86a8c7af11"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/22a9adea7e26d236406edc0ea00b54351dd56b9c"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/2b5f282b1b7241ef624c3399a1cdff0bb1a3eeab"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/753ad20dcbe36b67088c7770d8fc357d7cc43e08"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/be8b82c567fda86f2cbb43b7208825125bb31421"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/cc6d5a3c0a854aeae00915fc5386570c86029c60"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/f061336f072ab03fd29270ae61fede46bf8fd69d"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/f5d8af683410a8c82e48b51291915bd612523d9a"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-476" ],
"severity" : "MODERATE",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-03-25T11:16:22Z"
}
}