CVE-2026-97926: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-35q6-8fhf-pg65
Share
CVSS 7.0
Published
Advisory Summary

CVE-2026-97926 is a HIGH (CVSS 7.0) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-97926 at a Glance

CVE Identifier CVE-2026-97926
GHSA Identifier GHSA-35q6-8fhf-pg65
Severity HIGH
CVSS v3.1 Base Score 7.0
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-97926

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-2026-97926, 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: ufs: validate cylinder group metadata before caching it ufs_read_cylinder() copies the cylinder group index and the rotor positions straight from the on-disk group and caches them without any check: ucpi->c_cgx = fs32_to_cpu(sb, ucg->cg_cgx); ucpi->c_rotor = fs32_to_cpu(sb, ucg->cg_rotor); ucpi->c_frotor = fs32_to_cpu(sb, ucg->cg_frotor); ucpi->c_irotor = fs32_to_cpu(sb, ucg->cg_irotor); They are then used as indices during allocation and free: - c_cgx indexes the cylinder summary array as UFS_SB(sb)->fs_cs(ucpi->c_cgx), so a value past s_ncg writes a 32 bit count outside the s_csp allocation. - c_frotor becomes a bitmap scan start, start = c_frotor >> 3, and then length = ((s_fpg + 7) >> 3) - start. A start beyond the block bitmap wraps the unsigned length to a huge value, so ubh_scanc() walks far past the cylinder group buffers. c_irotor drives the inode bitmap the same way. A crafted image can set any of these freely, turning an ordinary allocation into an out of bounds access. Reject a cylinder group whose recorded index does not match the group being read, or whose rotors fall outside the group, before the metadata is cached. Valid filesystems keep cg_cgx equal to the group number and the rotors within the group, so only malformed images are rejected.

References

NVD — CVE-2026-97926 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-97926
git.kernel.org/stable/c/58c0c414b2... WEB
https://git.kernel.org/stable/c/58c0c414b2b8d099d33da494a354fa836ca6c10b
git.kernel.org/stable/c/5902a95066... WEB
https://git.kernel.org/stable/c/5902a95066883cf96fa15b2680694fc5dd0c7d11
git.kernel.org/stable/c/87b12dc360... WEB
https://git.kernel.org/stable/c/87b12dc360a002eb2d498aa4f01e84347019612d
git.kernel.org/stable/c/88cccb6beb... WEB
https://git.kernel.org/stable/c/88cccb6beba136b73f0caf80e59457e1b3c0ca1e
git.kernel.org/stable/c/abde9eb331... WEB
https://git.kernel.org/stable/c/abde9eb33106850dfa367ad3965d3588bb8558d5
git.kernel.org/stable/c/c9d263be26... WEB
https://git.kernel.org/stable/c/c9d263be26806d388129fab8c6904bed197fc6af
git.kernel.org/stable/c/e4c5cc9688... WEB
https://git.kernel.org/stable/c/e4c5cc9688c3e69d07d888853388549ae26c0521
git.kernel.org/stable/c/f560a9e333... WEB
https://git.kernel.org/stable/c/f560a9e33365c460827c735fd86435f9213f1aed

Frequently Asked Questions

What is CVE-2026-97926?
CVE-2026-97926 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-2026-97926?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-97926?
CVE-2026-97926 has a CVSS v3.1 base score of 7.0 (HIGH) with vector string CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-97926?
CVE-2026-97926 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-97926?
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-35q6-8fhf-pg65",
  "modified" : "2026-10-03T12:31:21Z",
  "published" : "2026-09-25T12:31:28Z",
  "aliases" : [ "CVE-2026-97926" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nufs: validate cylinder group metadata before caching it\n\nufs_read_cylinder() copies the cylinder group index and the rotor\npositions straight from the on-disk group and caches them without any\ncheck:\n\n\tucpi->c_cgx    = fs32_to_cpu(sb, ucg->cg_cgx);\n\tucpi->c_rotor  = fs32_to_cpu(sb, ucg->cg_rotor);\n\tucpi->c_frotor = fs32_to_cpu(sb, ucg->cg_frotor);\n\tucpi->c_irotor = fs32_to_cpu(sb, ucg->cg_irotor);\n\nThey are then used as indices during allocation and free:\n\n  - c_cgx indexes the cylinder summary array as\n    UFS_SB(sb)->fs_cs(ucpi->c_cgx), so a value past s_ncg writes a 32\n    bit count outside the s_csp allocation.\n\n  - c_frotor becomes a bitmap scan start, start = c_frotor >> 3, and\n    then length = ((s_fpg + 7) >> 3) - start. A start beyond the block\n    bitmap wraps the unsigned length to a huge value, so ubh_scanc()\n    walks far past the cylinder group buffers. c_irotor drives the\n    inode bitmap the same way.\n\nA crafted image can set any of these freely, turning an ordinary\nallocation into an out of bounds access.\n\nReject a cylinder group whose recorded index does not match the group\nbeing read, or whose rotors fall outside the group, before the metadata\nis cached. Valid filesystems keep cg_cgx equal to the group number and\nthe rotors within the group, so only malformed images are rejected.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-97926"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/58c0c414b2b8d099d33da494a354fa836ca6c10b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5902a95066883cf96fa15b2680694fc5dd0c7d11"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/87b12dc360a002eb2d498aa4f01e84347019612d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/88cccb6beba136b73f0caf80e59457e1b3c0ca1e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/abde9eb33106850dfa367ad3965d3588bb8558d5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c9d263be26806d388129fab8c6904bed197fc6af"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e4c5cc9688c3e69d07d888853388549ae26c0521"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f560a9e33365c460827c735fd86435f9213f1aed"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:19Z"
  }
}