CVE-2026-52986: Software Security Vulnerability Vulnerability
CRITICALCVE-2026-52986 is a CRITICAL (CVSS 9.8) 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-2026-52986 at a Glance
Security Impact
CVSS: 9.8
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:H/I:H/A:H).
How to Fix CVE-2026-52986
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-2026-52986, 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-2026-52986?
Which Software versions are affected?
What version fixes CVE-2026-52986?
What is the CVSS score of CVE-2026-52986?
What CWE is associated with CVE-2026-52986?
How can I check Maven dependencies for CVE-2026-52986?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-p6jx-f9x6-6955",
"modified" : "2026-10-15T03:36:11Z",
"published" : "2026-06-24T18:32:42Z",
"aliases" : [ "CVE-2026-52986" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_sip: don't use simple_strtoul\n\nReplace unsafe port parsing in epaddr_len(), ct_sip_parse_header_uri(),\nand ct_sip_parse_request() with a new sip_parse_port() helper that\nvalidates each digit against the buffer limit, eliminating the use of\nsimple_strtoul() which assumes NUL-terminated strings.\n\nThe previous code dereferenced pointers without bounds checks after\nsip_parse_addr() and relied on simple_strtoul() on non-NUL-terminated\nskb data. A port that reaches the buffer limit without a trailing\ncharacter is also rejected as malformed.\n\nAlso get rid of all simple_strtoul() usage in conntrack, prefer a\nstricter version instead. There are intentional changes:\n\n- Bail out if number is > UINT_MAX and indicate a failure, same for\n too long sequences.\n While we do accept 05535 as port 5535, we will not accept e.g.\n 'sip:10.0.0.1:005060'. While its syntactically valid under RFC 3261,\n we should restrict this to not waste cycles when presented with\n malformed packets with 64k '0' characters.\n\n- Force base 10 in ct_sip_parse_numerical_param(). This is used to fetch\n 'expire=' and 'rports='; both are expected to use base-10.\n\n- In nf_nat_sip.c, only accept the parsed value if its within the 1k-64k\n range.\n\n- epaddr_len now returns 0 if the port is invalid, as it already does\n for invalid ip addresses. This is intentional. nf_conntrack_sip\n performs lots of guesswork to find the right parts of the message\n to parse. Being stricter could break existing setups.\n Connection tracking helpers are designed to allow traffic to\n pass, not to block it.\n\nBased on an earlier patch from Jenny Guanni Qu <qguanni@gmail.com>.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-52986"
}, {
"type" : "WEB",
"url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
}, {
"type" : "WEB",
"url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/523762e3b6933fff81f01dfa3c60c0774044cdab"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/7df9863bf538a626e8a684e59cb2c43eac0ef3c8"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/8cd0358379570003659186706e077929d6930c40"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/8cf6809cddcbe301aedfc6b51bcd4944d45795f6"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/9c6afcb1c3cbb2c0da65b8515ac14d7273872f84"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/9f69c323ae0ab517e595c2cc74e0ae0d9d085611"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/b3264c977e79d8a25778d4fd11520f00fea1329c"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/ea2ecd29b8f4433e52607192ca91084f95787ca0"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-125", "CWE-476" ],
"severity" : "CRITICAL",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-06-24T17:17:09Z"
}
}