CVE-2026-68335: Software Security Vulnerability Vulnerability
HIGHCVE-2026-68335 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-416: Use After Free) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.. Remediation is available in the latest vendor maintenance releases.
CVE-2026-68335 at a Glance
Security Impact
CVSS: 7.8
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:H/A:H).
How to Fix CVE-2026-68335
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-2026-68335, 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-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. 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-2026-68335?
Which Software versions are affected?
What version fixes CVE-2026-68335?
What is the CVSS score of CVE-2026-68335?
What CWE is associated with CVE-2026-68335?
How can I check Maven dependencies for CVE-2026-68335?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-c7h5-q22g-86gx",
"modified" : "2026-08-19T18:32:15Z",
"published" : "2026-08-10T15:33:46Z",
"aliases" : [ "CVE-2026-68335" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nrds: drop incoming messages that cross network namespace boundaries\n\nrds_find_bound() looks up the destination socket using a global\nrhashtable keyed solely on (addr, port, scope_id). Network namespaces\nare not part of the key, so a sender in netns A can deliver an incoming\nmessage (inc) to a socket that lives in a different netns B.\n\nWhen this happens, inc->i_conn points to an rds_connection whose c_net\nis netns A, but the receiving rs lives in netns B. Once the child\nprocess that created netns A exits, cleanup_net() calls\nrds_loop_exit_net() -> rds_loop_kill_conns() -> rds_conn_destroy(),\nfreeing that connection. If the survivor socket in netns B still holds\nthe inc, any subsequent dereference of inc->i_conn is a use-after-free.\n\nThere are two dangerous sites in rds_clear_recv_queue():\n 1. inc->i_conn->c_lcong (offset 88 of freed rds_connection, size 200)\n read via rds_recv_rcvbuf_delta() -- confirmed by KASAN.\n 2. inc->i_conn->c_trans->inc_free(inc) (function pointer at offset 80)\n called via rds_inc_put() when the inc refcount reaches zero -- same\n race window, potential call-through-freed-object primitive.\n\nThe bug is reachable from unprivileged user namespaces\n(CLONE_NEWUSER + CLONE_NEWNET), available since Linux 3.8.\n\nFix this by rejecting the delivery in rds_recv_incoming() when the\nsocket returned by rds_find_bound() belongs to a different network\nnamespace than the connection that carried the message. Use the\nexisting rds_conn_net() / sock_net() helpers and net_eq() for the\ncomparison.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68335"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/03c574112e5d066df0ddce36d7438e850bcf3050"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/0f8690e3869109cd5803ccb400889d20a0b54e0e"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/1e2e2d9806944fe485824d617c8b7c78116c22db"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/5521ae71e32a8069ed4ca6e792179dc57bc43ab2"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/742ff6f02545212e991cd8b45011e40d2c2ef25a"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/9591042533140dfe6608d9344806d567dcd39d02"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/abff41fd928328bbf3dda1140beb2e61fa424ccd"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/cfb3ce07b705e486e022a2f2b1242b48f13981ff"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-416" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-08-10T13:20:23Z"
}
}