CVE-2026-98600: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-hpgr-cqmv-php2
Share
Published
Advisory Summary

CVE-2026-98600 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98600 at a Glance

CVE Identifier CVE-2026-98600
GHSA Identifier GHSA-hpgr-cqmv-php2
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-98600

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.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-98600, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze 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 General Security Weakness. 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

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Reject short EA=0 frames in rfcomm_recv_frame() While rfcomm_recv_frame() verifies that skb->len is at least sizeof(*hdr) + 1 (4 bytes: 3-byte header + 1-byte FCS), an RFCOMM frame with an extended 2-byte length field (!__test_ea(hdr->len)) has a 4-byte header plus a 1-byte FCS (5 bytes minimum, sizeof(*hdr) + 2). When a 4-byte RFCOMM frame with EA == 0 arrives: 1. The initial skb->len < sizeof(*hdr) + 1 check passes (4 < 4 is false). 2. Trimming the FCS byte decrements skb->len to 3. 3. If __check_fcs() succeeds, skb_pull(skb, 4) fails (4 > 3) and returns NULL without advancing skb->data. 4. Because the return value of skb_pull() is ignored, the un-pulled 3-byte struct rfcomm_hdr remains at skb->data and is either queued as application payload via rfcomm_recv_data() or parsed as a multiplexer control command via rfcomm_recv_mcc() on DLCI 0. Fix this by extending the length check in rfcomm_recv_frame() to also require skb->len >= sizeof(*hdr) + 2 when !__test_ea(hdr->len).

References

NVD — CVE-2026-98600 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98600
git.kernel.org/stable/c/6d91041bb3... WEB
https://git.kernel.org/stable/c/6d91041bb38b97e2feb625123cc0529d7b83a0e1
git.kernel.org/stable/c/71ccacde40... WEB
https://git.kernel.org/stable/c/71ccacde407b7d8f0ef48974a0d2524602fd5c44
git.kernel.org/stable/c/76876fd265... WEB
https://git.kernel.org/stable/c/76876fd26569302d26d91cbe8b75fa8e66cf8969
git.kernel.org/stable/c/7a1781a2f3... WEB
https://git.kernel.org/stable/c/7a1781a2f3a9667b3065d402d1f11986a2363e08
git.kernel.org/stable/c/9240fc1f2c... WEB
https://git.kernel.org/stable/c/9240fc1f2cde5331c61608da21b00394602ca762
git.kernel.org/stable/c/97711b9648... WEB
https://git.kernel.org/stable/c/97711b964877242933484989224a3c4c5d88a5ee
git.kernel.org/stable/c/be00deee60... WEB
https://git.kernel.org/stable/c/be00deee60044ffa820f9436415caeb665b2cda0
git.kernel.org/stable/c/c25587fa26... WEB
https://git.kernel.org/stable/c/c25587fa26761e623198b4f47151fe79d09ccde6

Frequently Asked Questions

What is CVE-2026-98600?
CVE-2026-98600 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-98600?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98600?
CVE-2026-98600 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98600?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-hpgr-cqmv-php2",
  "modified" : "2026-10-18T18:31:56Z",
  "published" : "2026-10-18T18:31:56Z",
  "aliases" : [ "CVE-2026-98600" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: Reject short EA=0 frames in rfcomm_recv_frame()\n\nWhile rfcomm_recv_frame() verifies that skb->len is at least\nsizeof(*hdr) + 1 (4 bytes: 3-byte header + 1-byte FCS), an RFCOMM frame\nwith an extended 2-byte length field (!__test_ea(hdr->len)) has a 4-byte\nheader plus a 1-byte FCS (5 bytes minimum, sizeof(*hdr) + 2).\n\nWhen a 4-byte RFCOMM frame with EA == 0 arrives:\n1. The initial skb->len < sizeof(*hdr) + 1 check passes (4 < 4 is false).\n2. Trimming the FCS byte decrements skb->len to 3.\n3. If __check_fcs() succeeds, skb_pull(skb, 4) fails (4 > 3) and returns\n   NULL without advancing skb->data.\n4. Because the return value of skb_pull() is ignored, the un-pulled\n   3-byte struct rfcomm_hdr remains at skb->data and is either queued as\n   application payload via rfcomm_recv_data() or parsed as a multiplexer\n   control command via rfcomm_recv_mcc() on DLCI 0.\n\nFix this by extending the length check in rfcomm_recv_frame() to also\nrequire skb->len >= sizeof(*hdr) + 2 when !__test_ea(hdr->len).",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98600"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6d91041bb38b97e2feb625123cc0529d7b83a0e1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/71ccacde407b7d8f0ef48974a0d2524602fd5c44"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/76876fd26569302d26d91cbe8b75fa8e66cf8969"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7a1781a2f3a9667b3065d402d1f11986a2363e08"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9240fc1f2cde5331c61608da21b00394602ca762"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/97711b964877242933484989224a3c4c5d88a5ee"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/be00deee60044ffa820f9436415caeb665b2cda0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c25587fa26761e623198b4f47151fe79d09ccde6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:12Z"
  }
}