CVE-2026-74588: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-g275-m9xc-x5q2
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CVSS 9.8
Published
Advisory Summary

CVE-2026-74588 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74588 at a Glance

CVE Identifier CVE-2026-74588
GHSA Identifier GHSA-g275-m9xc-x5q2
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-74588

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-2026-74588, 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: sctp: keep chunk->transport in step with the list it is queued on __sctp_outq_flush_rtx() moves a gap-acked chunk onto another transport's transmitted list without updating chunk->transport: if (chunk->tsn_gap_acked) { list_move_tail(&chunk->transmitted_list, &transport->transmitted); continue; } The chunk then sits on a live transport's list while chunk->transport still names a different one. If that transport is removed - sctp_assoc_rm_peer() from an ASCONF Delete-IP - sctp_transport_free() RCU-frees it and the chunk is left with a dangling pointer. sctp_assoc_rm_peer() scrubs peer->transmitted and asoc->outqueue.out_chunk_list, but the chunk is on neither. The pointer is not followed while tsn_gap_acked is set. A SACK that reneges on the TSN clears the flag, and the next SACK reaches tchunk->transport->flight_size -= sctp_data_size(tchunk); inside the freed transport. KASAN reports a slab-use-after-free read in sctp_check_transmitted(), freed from sctp_assoc_rm_peer(). Both the removal and the SACKs come from the association peer. Set chunk->transport at the move. The ordinary resend path needs nothing: it reaches its list_move_tail() only after sctp_packet_append_chunk() returned SCTP_XMIT_OK, and __sctp_packet_append_chunk() has rebound the chunk by then. Discovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>

References

NVD — CVE-2026-74588 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74588
git.kernel.org/stable/c/1adf929121... WEB
https://git.kernel.org/stable/c/1adf929121e13e0b19200bb9fef715b918d483fe
git.kernel.org/stable/c/2b3b5eec8b... WEB
https://git.kernel.org/stable/c/2b3b5eec8b2c30ee237e3c31a6a38de9c39d804d
git.kernel.org/stable/c/5ccf35ef0e... WEB
https://git.kernel.org/stable/c/5ccf35ef0ed6059cdf8b1f4606a6584d5b67166b
git.kernel.org/stable/c/6575fb1723... WEB
https://git.kernel.org/stable/c/6575fb17230814b48b471727c8410c0aadff9274
git.kernel.org/stable/c/6b9e2ea205... WEB
https://git.kernel.org/stable/c/6b9e2ea2057113f3393990ba646d2d97c719a80d
git.kernel.org/stable/c/874a7c2b5e... WEB
https://git.kernel.org/stable/c/874a7c2b5e184f06134fdfde27e9ce9271bafe58
git.kernel.org/stable/c/9f2cf069a9... WEB
https://git.kernel.org/stable/c/9f2cf069a9a72a2d6b97ca8b4c70e714aac99749
git.kernel.org/stable/c/e2e7c1de0e... WEB
https://git.kernel.org/stable/c/e2e7c1de0e226ca1b7fea2de57a6c9bca408709b

Frequently Asked Questions

What is CVE-2026-74588?
CVE-2026-74588 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-2026-74588?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74588?
CVE-2026-74588 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-74588?
CVE-2026-74588 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74588?
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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  "id" : "GHSA-g275-m9xc-x5q2",
  "modified" : "2026-08-25T06:31:21Z",
  "published" : "2026-08-22T18:30:25Z",
  "aliases" : [ "CVE-2026-74588" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: keep chunk->transport in step with the list it is queued on\n\n__sctp_outq_flush_rtx() moves a gap-acked chunk onto another transport's\ntransmitted list without updating chunk->transport:\n\n\tif (chunk->tsn_gap_acked) {\n\t\tlist_move_tail(&chunk->transmitted_list,\n\t\t\t       &transport->transmitted);\n\t\tcontinue;\n\t}\n\nThe chunk then sits on a live transport's list while chunk->transport still\nnames a different one.  If that transport is removed - sctp_assoc_rm_peer()\nfrom an ASCONF Delete-IP - sctp_transport_free() RCU-frees it and the chunk\nis left with a dangling pointer.  sctp_assoc_rm_peer() scrubs\npeer->transmitted and asoc->outqueue.out_chunk_list, but the chunk is on\nneither.\n\nThe pointer is not followed while tsn_gap_acked is set.  A SACK that\nreneges on the TSN clears the flag, and the next SACK reaches\n\n\ttchunk->transport->flight_size -= sctp_data_size(tchunk);\n\ninside the freed transport.  KASAN reports a slab-use-after-free read in\nsctp_check_transmitted(), freed from sctp_assoc_rm_peer().  Both the\nremoval and the SACKs come from the association peer.\n\nSet chunk->transport at the move.  The ordinary resend path needs nothing:\nit reaches its list_move_tail() only after sctp_packet_append_chunk()\nreturned SCTP_XMIT_OK, and __sctp_packet_append_chunk() has rebound the\nchunk by then.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74588"
  }, {
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  }, {
    "type" : "WEB",
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  }, {
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    "url" : "https://git.kernel.org/stable/c/874a7c2b5e184f06134fdfde27e9ce9271bafe58"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9f2cf069a9a72a2d6b97ca8b4c70e714aac99749"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e2e7c1de0e226ca1b7fea2de57a6c9bca408709b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-22T16:16:30Z"
  }
}