CVE-2026-98287: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-m2p4-c77r-p2c7
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Advisory Summary

CVE-2026-98287 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-2026-98287 at a Glance

CVE Identifier CVE-2026-98287
GHSA Identifier GHSA-m2p4-c77r-p2c7
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-2026-98287

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-2026-98287, 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: pppoatm: ensure a writable skb header and linear data In pppoatm_send(), LLC encapsulation checks whether there is sufficient headroom for the 4-byte LLC header, but does not ensure that the skb header is writable. Normal transmit packets passing through ppp_start_xmit() have their header unshared via skb_cow_head(). However, packets can also reach pppoatm_send() via PPP channel bridging (PPPIOCBRIDGECHAN) without going through ppp_start_xmit(). Use skb_cow_head() to ensure both sufficient headroom and a writable header before pushing the LLC header. While at it: - Call pskb_may_pull(skb, 1) before inspecting skb->data[0] to prevent out-of-bounds reads on zero-length or non-linear frames (e.g. from bridging). - Defer SC_COMP_PROT protocol compression until after pppoatm_may_send() succeeds. This eliminates the temporary skb allocation on admission failure and completely removes the fragile "undo" heuristic at the nospace label, avoiding any risk of reading uninitialized headroom or performing an unbalanced skb_push().

References

NVD — CVE-2026-98287 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98287
git.kernel.org/stable/c/208ccc4d08... WEB
https://git.kernel.org/stable/c/208ccc4d08b1897451e9ba01c016bf93ff107966
git.kernel.org/stable/c/30992fe39e... WEB
https://git.kernel.org/stable/c/30992fe39e65589ed8e000425e088fa74994b811
git.kernel.org/stable/c/8e66c5969a... WEB
https://git.kernel.org/stable/c/8e66c5969acd859ba72fb0a7fa895623fc1b3769
git.kernel.org/stable/c/e2f5529b00... WEB
https://git.kernel.org/stable/c/e2f5529b0016db7d34f411408607f5cf395a542e
git.kernel.org/stable/c/e6cd1bba7d... WEB
https://git.kernel.org/stable/c/e6cd1bba7d113c15c00ac63671213a096fe4d686
git.kernel.org/stable/c/ecc7253683... WEB
https://git.kernel.org/stable/c/ecc7253683a3c55caa868ce0ee530fcb0044bd3c
git.kernel.org/stable/c/ffc448eb54... WEB
https://git.kernel.org/stable/c/ffc448eb54f5ba80d4212c1e870cdb92b0f709fa

Frequently Asked Questions

What is CVE-2026-98287?
CVE-2026-98287 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-2026-98287?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98287?
CVE-2026-98287 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98287?
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 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-m2p4-c77r-p2c7",
  "modified" : "2026-10-06T09:31:33Z",
  "published" : "2026-10-06T09:31:33Z",
  "aliases" : [ "CVE-2026-98287" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\npppoatm: ensure a writable skb header and linear data\n\nIn pppoatm_send(), LLC encapsulation checks whether there is sufficient\nheadroom for the 4-byte LLC header, but does not ensure that the skb header\nis writable.\n\nNormal transmit packets passing through ppp_start_xmit() have their header\nunshared via skb_cow_head(). However, packets can also reach pppoatm_send()\nvia PPP channel bridging (PPPIOCBRIDGECHAN) without going through\nppp_start_xmit().\n\nUse skb_cow_head() to ensure both sufficient headroom and a writable\nheader before pushing the LLC header.\n\nWhile at it:\n- Call pskb_may_pull(skb, 1) before inspecting skb->data[0] to prevent\n  out-of-bounds reads on zero-length or non-linear frames (e.g. from\n  bridging).\n- Defer SC_COMP_PROT protocol compression until after pppoatm_may_send()\n  succeeds. This eliminates the temporary skb allocation on admission failure\n  and completely removes the fragile \"undo\" heuristic at the nospace label,\n  avoiding any risk of reading uninitialized headroom or performing an\n  unbalanced skb_push().",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98287"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/208ccc4d08b1897451e9ba01c016bf93ff107966"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/30992fe39e65589ed8e000425e088fa74994b811"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8e66c5969acd859ba72fb0a7fa895623fc1b3769"
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    "url" : "https://git.kernel.org/stable/c/e2f5529b0016db7d34f411408607f5cf395a542e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e6cd1bba7d113c15c00ac63671213a096fe4d686"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ecc7253683a3c55caa868ce0ee530fcb0044bd3c"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ffc448eb54f5ba80d4212c1e870cdb92b0f709fa"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-06T09:18:18Z"
  }
}