CVE-2026-43365: Software Security Vulnerability Vulnerability
HIGHCVE-2026-43365 is a HIGH (CVSS 8.2) security vulnerability vulnerability (CWE-20: Improper Input Validation) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.. Remediation is available in the latest vendor maintenance releases.
CVE-2026-43365 at a Glance
Security Impact
CVSS: 8.2
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H).
How to Fix CVE-2026-43365
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-2026-43365, 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. 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-2026-43365?
Which Software versions are affected?
What version fixes CVE-2026-43365?
What is the CVSS score of CVE-2026-43365?
What CWE is associated with CVE-2026-43365?
How can I check Maven dependencies for CVE-2026-43365?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-gf37-6wm7-r3cm",
"modified" : "2026-05-11T09:30:30Z",
"published" : "2026-05-08T15:31:26Z",
"aliases" : [ "CVE-2026-43365" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix undersized l_iclog_roundoff values\n\nIf the superblock doesn't list a log stripe unit, we set the incore log\nroundoff value to 512. This leads to corrupt logs and unmountable\nfilesystems in generic/617 on a disk with 4k physical sectors...\n\nXFS (sda1): Mounting V5 Filesystem ff3121ca-26e6-4b77-b742-aaff9a449e1c\nXFS (sda1): Torn write (CRC failure) detected at log block 0x318e. Truncating head block from 0x3197.\nXFS (sda1): failed to locate log tail\nXFS (sda1): log mount/recovery failed: error -74\nXFS (sda1): log mount failed\nXFS (sda1): Mounting V5 Filesystem ff3121ca-26e6-4b77-b742-aaff9a449e1c\nXFS (sda1): Ending clean mount\n\n...on the current xfsprogs for-next which has a broken mkfs. xfs_info\nshows this...\n\nmeta-data=/dev/sda1 isize=512 agcount=4, agsize=644992 blks\n = sectsz=4096 attr=2, projid32bit=1\n = crc=1 finobt=1, sparse=1, rmapbt=1\n = reflink=1 bigtime=1 inobtcount=1 nrext64=1\n = exchange=1 metadir=1\ndata = bsize=4096 blocks=2579968, imaxpct=25\n = sunit=0 swidth=0 blks\nnaming =version 2 bsize=4096 ascii-ci=0, ftype=1, parent=1\nlog =internal log bsize=4096 blocks=16384, version=2\n = sectsz=4096 sunit=0 blks, lazy-count=1\nrealtime =none extsz=4096 blocks=0, rtextents=0\n = rgcount=0 rgsize=268435456 extents\n = zoned=0 start=0 reserved=0\n\n...observe that the log section has sectsz=4096 sunit=0, which means\nthat the roundoff factor is 512, not 4096 as you'd expect. We should\nfix mkfs not to generate broken filesystems, but anyone can fuzz the\nondisk superblock so we should be more cautious. I think the inadequate\nlogic predates commit a6a65fef5ef8d0, but that's clearly going to\nrequire a different backport.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-43365"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/2ecda4b83749c1fef0c9dea4fd5e8b513aba3e40"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/41e91dff2d3974730b5ee50daa8e27ec254cbf91"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/446a1f5bb64ba38adb93cb043ff0f7b85e8937ca"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/52a8a1ba883defbfe3200baa22cf4cd21985d51a"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/5afae524f83d6a18517298491a5624cb0eae5029"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/5e7148402dfc4a5b7894d8e97b15e5c2e70924aa"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/e88ce9f0536f3b2149afb70625cfc4bd74a4ac6d"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-20" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-05-08T15:16:47Z"
}
}