CVE-2026-46033: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-f7w2-rj2f-73q3
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CVSS 7.1
CWE-125 CWE-1284
Published
Advisory Summary

CVE-2026-46033 is a HIGH (CVSS 7.1) 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-2026-46033 at a Glance

CVE Identifier CVE-2026-46033
GHSA Identifier GHSA-f7w2-rj2f-73q3
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.1

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

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

How to Fix CVE-2026-46033

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-2026-46033, 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-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

In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject short ahash digests during instance creation authencesn requires either a zero authsize or an authsize of at least 4 bytes because the ESN encrypt/decrypt paths always move 4 bytes of high-order sequence number data at the end of the authenticated data. While crypto_authenc_esn_setauthsize() already rejects explicit non-zero authsizes in the range 1..3, crypto_authenc_esn_create() still copied auth->digestsize into inst->alg.maxauthsize without validating it. The AEAD core then initialized the tfm's default authsize from that value. As a result, selecting an ahash with digest size 1..3, such as cbcmac(cipher_null), exposed authencesn instances whose default authsize was invalid even though setauthsize() would have rejected the same value. AF_ALG could then trigger the ESN tail handling with a too-short tag and hit an out-of-bounds access. Reject authencesn instances whose ahash digest size is in the invalid non-zero range 1..3 so that no tfm can inherit an unsupported default authsize.

References

NVD — CVE-2026-46033 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46033
Software Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2026-46033
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2482000
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-457936.html
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/2f31cd1e64... WEB
https://git.kernel.org/stable/c/2f31cd1e64a079c845bca31d2da7b3c90a311726
git.kernel.org/stable/c/5db6ef9847... WEB
https://git.kernel.org/stable/c/5db6ef9847717329f12c5ea8aba7e9f588a980c0
git.kernel.org/stable/c/67f1f0933c... WEB
https://git.kernel.org/stable/c/67f1f0933cc3d78dde222842bcad2778ec7a0b88
git.kernel.org/stable/c/77f59fb2d3... WEB
https://git.kernel.org/stable/c/77f59fb2d3aa33e90ec6cbbf45dcfb20ab82b1a9
git.kernel.org/stable/c/9aff81e821... WEB
https://git.kernel.org/stable/c/9aff81e8217e9de2929084b03b3c7f81988c112b
git.kernel.org/stable/c/b42821c154... WEB
https://git.kernel.org/stable/c/b42821c15445f93daea3e76ada682b2b7181c476
git.kernel.org/stable/c/b69933e97e... WEB
https://git.kernel.org/stable/c/b69933e97efea238ebbfcf70c2b1be1cd03f13e3
git.kernel.org/stable/c/d4c6a6d08e... WEB
https://git.kernel.org/stable/c/d4c6a6d08e70bb1083c7c405fc7faacbf19aebc0
Software Security Information SECURITY
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46033.json

Frequently Asked Questions

What is CVE-2026-46033?
CVE-2026-46033 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46033?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46033?
CVE-2026-46033 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2026-46033?
CVE-2026-46033 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-46033?
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-f7w2-rj2f-73q3",
  "modified" : "2026-10-15T03:35:57Z",
  "published" : "2026-05-27T15:33:21Z",
  "aliases" : [ "CVE-2026-46033" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: authencesn - reject short ahash digests during instance creation\n\nauthencesn requires either a zero authsize or an authsize of at least\n4 bytes because the ESN encrypt/decrypt paths always move 4 bytes of\nhigh-order sequence number data at the end of the authenticated data.\n\nWhile crypto_authenc_esn_setauthsize() already rejects explicit\nnon-zero authsizes in the range 1..3, crypto_authenc_esn_create()\nstill copied auth->digestsize into inst->alg.maxauthsize without\nvalidating it.  The AEAD core then initialized the tfm's default\nauthsize from that value.\n\nAs a result, selecting an ahash with digest size 1..3, such as\ncbcmac(cipher_null), exposed authencesn instances whose default\nauthsize was invalid even though setauthsize() would have rejected the\nsame value.  AF_ALG could then trigger the ESN tail handling with a\ntoo-short tag and hit an out-of-bounds access.\n\nReject authencesn instances whose ahash digest size is in the invalid\nnon-zero range 1..3 so that no tfm can inherit an unsupported default\nauthsize.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2482000"
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    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
  }, {
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2f31cd1e64a079c845bca31d2da7b3c90a311726"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5db6ef9847717329f12c5ea8aba7e9f588a980c0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/67f1f0933cc3d78dde222842bcad2778ec7a0b88"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/77f59fb2d3aa33e90ec6cbbf45dcfb20ab82b1a9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9aff81e8217e9de2929084b03b3c7f81988c112b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b42821c15445f93daea3e76ada682b2b7181c476"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b69933e97efea238ebbfcf70c2b1be1cd03f13e3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d4c6a6d08e70bb1083c7c405fc7faacbf19aebc0"
  }, {
    "type" : "WEB",
    "url" : "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46033.json"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125", "CWE-1284" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-27T14:17:22Z"
  }
}