CVE-2026-45943: Software Security Vulnerability Vulnerability
HIGHCVE-2026-45943 is a HIGH (CVSS 7.1) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.
CVE-2026-45943 at a Glance
Security Impact
CVSS: 7.1
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:H/I:N/A:H).
How to Fix CVE-2026-45943
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-2026-45943, 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-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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-2026-45943?
Which Software versions are affected?
What version fixes CVE-2026-45943?
What is the CVSS score of CVE-2026-45943?
What CWE is associated with CVE-2026-45943?
How can I check Maven dependencies for CVE-2026-45943?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-w8vj-mr98-9j85",
"modified" : "2026-06-24T18:32:29Z",
"published" : "2026-05-27T15:33:17Z",
"aliases" : [ "CVE-2026-45943" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix inline data read failure for ztailpacking pclusters\n\nCompressed folios for ztailpacking pclusters must be valid before adding\nthese pclusters to I/O chains. Otherwise, z_erofs_decompress_pcluster()\nmay assume they are already valid and then trigger a NULL pointer\ndereference.\n\nIt is somewhat hard to reproduce because the inline data is in the same\nblock as the tail of the compressed indexes, which are usually read just\nbefore. However, it may still happen if a fatal signal arrives while\nread_mapping_folio() is running, as shown below:\n\n erofs: (device dm-1): z_erofs_pcluster_begin: failed to get inline data -4\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n\n ...\n\n pc : z_erofs_decompress_queue+0x4c8/0xa14\n lr : z_erofs_decompress_queue+0x160/0xa14\n sp : ffffffc08b3eb3a0\n x29: ffffffc08b3eb570 x28: ffffffc08b3eb418 x27: 0000000000001000\n x26: ffffff8086ebdbb8 x25: ffffff8086ebdbb8 x24: 0000000000000001\n x23: 0000000000000008 x22: 00000000fffffffb x21: dead000000000700\n x20: 00000000000015e7 x19: ffffff808babb400 x18: ffffffc089edc098\n x17: 00000000c006287d x16: 00000000c006287d x15: 0000000000000004\n x14: ffffff80ba8f8000 x13: 0000000000000004 x12: 00000006589a77c9\n x11: 0000000000000015 x10: 0000000000000000 x9 : 0000000000000000\n x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f\n x5 : 0000000000000040 x4 : ffffffffffffffe0 x3 : 0000000000000020\n x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000\n Call trace:\n z_erofs_decompress_queue+0x4c8/0xa14\n z_erofs_runqueue+0x908/0x97c\n z_erofs_read_folio+0x128/0x228\n filemap_read_folio+0x68/0x128\n filemap_get_pages+0x44c/0x8b4\n filemap_read+0x12c/0x5b8\n generic_file_read_iter+0x4c/0x15c\n do_iter_readv_writev+0x188/0x1e0\n vfs_iter_read+0xac/0x1a4\n backing_file_read_iter+0x170/0x34c\n ovl_read_iter+0xf0/0x140\n vfs_read+0x28c/0x344\n ksys_read+0x80/0xf0\n __arm64_sys_read+0x24/0x34\n invoke_syscall+0x60/0x114\n el0_svc_common+0x88/0xe4\n do_el0_svc+0x24/0x30\n el0_svc+0x40/0xa8\n el0t_64_sync_handler+0x70/0xbc\n el0t_64_sync+0x1bc/0x1c0\n\nFix this by reading the inline data before allocating and adding\nthe pclusters to the I/O chains.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-45943"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/5de1aa0bf3a5db0b3cbf61959da5ac61250833ed"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/92088bd9aa2a7246bba8b9648fbc64edd173cf17"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/ad07ea069f924465061cfee40ef2861bb99f4dd8"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/c134a40f86efb8d6b5a949ef70e06d5752209be5"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-125" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-05-27T14:17:10Z"
}
}