CVE-2026-53003: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-7g5v-54rw-hq9g
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CVSS 7.5
CWE-20
Published
Advisory Summary

CVE-2026-53003 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-20: Improper Input Validation) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53003 at a Glance

CVE Identifier CVE-2026-53003
GHSA Identifier GHSA-7g5v-54rw-hq9g
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-20: Improper Input Validation
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/I:N/A:H).

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

How to Fix CVE-2026-53003

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-2026-53003, 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 CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. 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: pppoe: drop PFC frames RFC 2516 Section 7 states that Protocol Field Compression (PFC) is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the current PPPoE driver assumes an uncompressed (2-byte) protocol field. However, the generic PPP layer function ppp_input() is not aware of the negotiation result, and still accepts PFC frames. If a peer with a broken implementation or an attacker sends a frame with a compressed (1-byte) protocol field, the subsequent PPP payload is shifted by one byte. This causes the network header to be 4-byte misaligned, which may trigger unaligned access exceptions on some architectures. To reduce the attack surface, drop PPPoE PFC frames. Introduce ppp_skb_is_compressed_proto() helper function to be used in both ppp_generic.c and pppoe.c to avoid open-coding.

References

NVD — CVE-2026-53003 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53003
git.kernel.org/stable/c/0cab5d077d... WEB
https://git.kernel.org/stable/c/0cab5d077dd1efd2bd1a47271acc35894f945b4f
git.kernel.org/stable/c/2b5c3c040d... WEB
https://git.kernel.org/stable/c/2b5c3c040d020e3ab3b9a8887031202d96843b1e
git.kernel.org/stable/c/49e41b60cc... WEB
https://git.kernel.org/stable/c/49e41b60ccd1bdbe9e218420f716dd5f9a2f9c71
git.kernel.org/stable/c/8a5e840bab... WEB
https://git.kernel.org/stable/c/8a5e840babc5c0fbd10c73728a13192347771ec6
git.kernel.org/stable/c/ba758fdf13... WEB
https://git.kernel.org/stable/c/ba758fdf1399f310b30098b6faa3fd043de47dd2
git.kernel.org/stable/c/cb3beef35a... WEB
https://git.kernel.org/stable/c/cb3beef35ab5e0c1afca9fd7648c6ae499786377
git.kernel.org/stable/c/cc1ff87bce... WEB
https://git.kernel.org/stable/c/cc1ff87bce1ccd38410ab10960f576dcd17db679
git.kernel.org/stable/c/fcca1df053... WEB
https://git.kernel.org/stable/c/fcca1df05322bb04e344dd1178b54b76a08eb7c3

Frequently Asked Questions

What is CVE-2026-53003?
CVE-2026-53003 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-20: Improper Input Validation.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-53003?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53003?
CVE-2026-53003 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-53003?
CVE-2026-53003 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Maven dependencies for CVE-2026-53003?
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-7g5v-54rw-hq9g",
  "modified" : "2026-06-28T09:31:38Z",
  "published" : "2026-06-24T18:32:43Z",
  "aliases" : [ "CVE-2026-53003" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\npppoe: drop PFC frames\n\nRFC 2516 Section 7 states that Protocol Field Compression (PFC) is NOT\nRECOMMENDED for PPPoE. In practice, pppd does not support negotiating\nPFC for PPPoE sessions, and the current PPPoE driver assumes an\nuncompressed (2-byte) protocol field. However, the generic PPP layer\nfunction ppp_input() is not aware of the negotiation result, and still\naccepts PFC frames.\n\nIf a peer with a broken implementation or an attacker sends a frame with\na compressed (1-byte) protocol field, the subsequent PPP payload is\nshifted by one byte. This causes the network header to be 4-byte\nmisaligned, which may trigger unaligned access exceptions on some\narchitectures.\n\nTo reduce the attack surface, drop PPPoE PFC frames. Introduce\nppp_skb_is_compressed_proto() helper function to be used in both\nppp_generic.c and pppoe.c to avoid open-coding.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
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    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-53003"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0cab5d077dd1efd2bd1a47271acc35894f945b4f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2b5c3c040d020e3ab3b9a8887031202d96843b1e"
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    "url" : "https://git.kernel.org/stable/c/cb3beef35ab5e0c1afca9fd7648c6ae499786377"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cc1ff87bce1ccd38410ab10960f576dcd17db679"
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    "url" : "https://git.kernel.org/stable/c/fcca1df05322bb04e344dd1178b54b76a08eb7c3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T17:17:11Z"
  }
}