CVE-2026-23397: Software Security Vulnerability Vulnerability
HIGHCVE-2026-23397 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-2026-23397 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-2026-23397
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-2026-23397, 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-2026-23397?
Which Software versions are affected?
What version fixes CVE-2026-23397?
What is the CVSS score of CVE-2026-23397?
What CWE is associated with CVE-2026-23397?
How can I check Maven dependencies for CVE-2026-23397?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-3rcm-5vqm-53w6",
"modified" : "2026-10-15T03:35:26Z",
"published" : "2026-03-26T12:30:29Z",
"aliases" : [ "CVE-2026-23397" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnfnetlink_osf: validate individual option lengths in fingerprints\n\nnfnl_osf_add_callback() validates opt_num bounds and string\nNUL-termination but does not check individual option length fields.\nA zero-length option causes nf_osf_match_one() to enter the option\nmatching loop even when foptsize sums to zero, which matches packets\nwith no TCP options where ctx->optp is NULL:\n\n Oops: general protection fault\n KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n RIP: 0010:nf_osf_match_one (net/netfilter/nfnetlink_osf.c:98)\n Call Trace:\n nf_osf_match (net/netfilter/nfnetlink_osf.c:227)\n xt_osf_match_packet (net/netfilter/xt_osf.c:32)\n ipt_do_table (net/ipv4/netfilter/ip_tables.c:293)\n nf_hook_slow (net/netfilter/core.c:623)\n ip_local_deliver (net/ipv4/ip_input.c:262)\n ip_rcv (net/ipv4/ip_input.c:573)\n\nAdditionally, an MSS option (kind=2) with length < 4 causes\nout-of-bounds reads when nf_osf_match_one() unconditionally accesses\noptp[2] and optp[3] for MSS value extraction. While RFC 9293\nsection 3.2 specifies that the MSS option is always exactly 4\nbytes (Kind=2, Length=4), the check uses \"< 4\" rather than\n\"!= 4\" because lengths greater than 4 do not cause memory\nsafety issues -- the buffer is guaranteed to be at least\nfoptsize bytes by the ctx->optsize == foptsize check.\n\nReject fingerprints where any option has zero length, or where an MSS\noption has length less than 4, at add time rather than trusting these\nvalues in the packet matching hot path.",
"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-2026-23397"
}, {
"type" : "WEB",
"url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
}, {
"type" : "WEB",
"url" : "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
}, {
"type" : "WEB",
"url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
}, {
"type" : "WEB",
"url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/224f4678812e1a7bc8341bcb666773a0aec5ea6f"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/3932620c04c2938c93c0890c225960d3d34ba355"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/3c11b5c2436a3a5b450612ab160e3a525b28cfb5"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/4c6aa008b913e808c4f4d3cde36cb1d9bb5967c6"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/aa0574182c46963c3cdb8cde46ec93aca21100d8"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/dbdfaae9609629a9569362e3b8f33d0a20fd783c"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/e9cf17b91e733fec725ebcc0b3098bc5ccd505e0"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/ec8bf0571b142f29dc0b68ae2ac3952f7a464b38"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-125" ],
"severity" : "HIGH",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-03-26T11:16:19Z"
}
}