CVE-2026-74639: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-hx28-f548-xhmf
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Advisory Summary

CVE-2026-74639 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-2026-74639 at a Glance

CVE Identifier CVE-2026-74639
GHSA Identifier GHSA-hx28-f548-xhmf
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-2026-74639

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-2026-74639, 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: ALSA: us144mkii: re-anchor capture URBs on resubmission capture_urb_complete() resubmits each capture URB without anchoring it: usb_get_urb(urb); ret = usb_submit_urb(urb, GFP_ATOMIC); Anchoring is a property of a submission, not of the URB. The giveback path calls usb_unanchor_urb() before urb->complete(), so an URB resubmitted from its own completion handler is off the anchor. The capture URBs are anchored once, at stream start, so from the first completion onward tascam->capture_anchor is empty. tascam_free_urbs(), tascam_disconnect(), tascam_suspend() and the stop-work path all call usb_kill_anchored_urbs(&tascam->capture_anchor) to reap the capture URBs before anything is freed. With the anchor empty those calls return immediately and the URBs stay queued on the host controller. tascam_free_urbs() then returns the capture transfer buffers with usb_free_coherent(), and snd_card_free() releases the snd_card allocation that embeds tascam (card->private_data). The controller completes the queued URBs afterwards, writing device-supplied data into the freed transfer buffer, and capture_urb_complete() dereferences the freed driver object. KASAN on 7.2.0-rc5 (arm64): BUG: KASAN: slab-use-after-free in dummy_timer Write of size 512 at addr ffff000015b62000 __asan_memcpy dummy_timer hrtimer_run_softirq Allocated by task 64: usb_alloc_coherent tascam_alloc_urbs tascam_probe Freed by task 170: usb_free_coherent tascam_free_urbs tascam_disconnect usb_unbind_interface BUG: KASAN: slab-use-after-free in capture_urb_complete Read of size 4 at addr ffff0000170ee878 Freed by task 170: release_card_device snd_card_free tascam_disconnect Restore the usb_anchor_urb() between the reference count bump and the resubmission. That also makes the handler's usb_unanchor_urb() failure arm meaningful again and restores usb_kill_anchored_urbs() as a barrier on the disconnect, suspend and stop-work paths. The anchoring was removed on the premise that the URB is already anchored from the initial submission, which does not hold once the first giveback has run. Discovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>

References

NVD — CVE-2026-74639 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74639
git.kernel.org/stable/c/2615f0fb90... WEB
https://git.kernel.org/stable/c/2615f0fb90df8cf5a96133ca4be74294ed288604
git.kernel.org/stable/c/7779249561... WEB
https://git.kernel.org/stable/c/7779249561d14b8a17c0c83783225794e24a587d
git.kernel.org/stable/c/a5548ce916... WEB
https://git.kernel.org/stable/c/a5548ce916594c811bd90ce33d67baa3557a6791

Frequently Asked Questions

What is CVE-2026-74639?
CVE-2026-74639 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-2026-74639?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-74639?
CVE-2026-74639 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74639?
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-hx28-f548-xhmf",
  "modified" : "2026-08-22T18:30:27Z",
  "published" : "2026-08-22T18:30:27Z",
  "aliases" : [ "CVE-2026-74639" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: us144mkii: re-anchor capture URBs on resubmission\n\ncapture_urb_complete() resubmits each capture URB without anchoring it:\n\n\tusb_get_urb(urb);\n\tret = usb_submit_urb(urb, GFP_ATOMIC);\n\nAnchoring is a property of a submission, not of the URB.  The giveback\npath calls usb_unanchor_urb() before urb->complete(), so an URB\nresubmitted from its own completion handler is off the anchor.  The\ncapture URBs are anchored once, at stream start, so from the first\ncompletion onward tascam->capture_anchor is empty.\n\ntascam_free_urbs(), tascam_disconnect(), tascam_suspend() and the\nstop-work path all call usb_kill_anchored_urbs(&tascam->capture_anchor)\nto reap the capture URBs before anything is freed.  With the anchor empty\nthose calls return immediately and the URBs stay queued on the host\ncontroller.\n\ntascam_free_urbs() then returns the capture transfer buffers with\nusb_free_coherent(), and snd_card_free() releases the snd_card\nallocation that embeds tascam (card->private_data).  The controller\ncompletes the queued URBs afterwards, writing device-supplied data into\nthe freed transfer buffer, and capture_urb_complete() dereferences the\nfreed driver object.\n\nKASAN on 7.2.0-rc5 (arm64):\n\n  BUG: KASAN: slab-use-after-free in dummy_timer\n  Write of size 512 at addr ffff000015b62000\n   __asan_memcpy\n   dummy_timer\n   hrtimer_run_softirq\n  Allocated by task 64:\n   usb_alloc_coherent\n   tascam_alloc_urbs\n   tascam_probe\n  Freed by task 170:\n   usb_free_coherent\n   tascam_free_urbs\n   tascam_disconnect\n   usb_unbind_interface\n\n  BUG: KASAN: slab-use-after-free in capture_urb_complete\n  Read of size 4 at addr ffff0000170ee878\n  Freed by task 170:\n   release_card_device\n   snd_card_free\n   tascam_disconnect\n\nRestore the usb_anchor_urb() between the reference count bump and the\nresubmission.  That also makes the handler's usb_unanchor_urb() failure\narm meaningful again and restores usb_kill_anchored_urbs() as a barrier\non the disconnect, suspend and stop-work paths.\n\nThe anchoring was removed on the premise that the URB is already anchored\nfrom the initial submission, which does not hold once the first giveback\nhas run.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74639"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2615f0fb90df8cf5a96133ca4be74294ed288604"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7779249561d14b8a17c0c83783225794e24a587d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a5548ce916594c811bd90ce33d67baa3557a6791"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-22T16:16:37Z"
  }
}