CVE-2026-46090

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ALSA: aloop: Fix peer runtime UAF during format-change stop

loopback_check_format() may stop the capture side when playback starts with parameters that no longer match a running capture stream. Commit 826af7fa62e3 ("ALSA: aloop: Fix racy access at PCM trigger") moved the peer lookup under cable->lock, but the actual snd_pcm_stop() still runs after dropping that lock.

A concurrent close can clear the capture entry from cable->streams[] and detach or free its runtime while the playback trigger path still holds a stale peer substream pointer.

Keep a per-cable count of in-flight peer stops before dropping cable->lock, and make free_cable() wait for those stops before detaching the runtime. This preserves the existing behavior while making the peer runtime lifetime explicit.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
1.2%
KEV
Not listed

Published

May 27, 2026

Last Modified

July 20, 2026

Advisory Details (4)

Auto-updated Jun 4, 2026
No patch confirmed yet.
generic

ALSA: aloop: Fix peer runtime UAF during format-change stop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e5c33cdc6f402eab8abd36ecf436b22c9d3a8aff
generic

ALSA: aloop: Fix peer runtime UAF during format-change stop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bdd9503c3d222d2735b56c7a8b4422ccf3de6e5c
generic

ALSA: aloop: Fix peer runtime UAF during format-change stop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5d45e34bf001344e2966dabca1897561bbc9e913
generic

ALSA: aloop: Fix peer runtime UAF during format-change stop - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/03f52a9c170431e8f10e156b9dc0dae80b3e9198

Vendor Advisories for CVE-2026-46090(15)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(17)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu
redhatkernel-0:4.18.0-477.150.1.el8_82026-07-06redhat
redhatkernel-0:3.10.0-1160.154.1.el72026-07-06redhat
redhatkernel-0:4.18.0-305.197.1.el8_42026-07-06redhat
redhatkernel-0:5.14.0-284.178.1.el9_22026-07-01redhat
redhatkernel-0:5.14.0-427.135.1.el9_42026-07-01redhat
redhatkernel-0:4.18.0-372.198.1.el8_62026-07-01redhat
redhatkernel-rt-0:5.14.0-284.178.1.rt14.463.el9_22026-07-01redhat
redhatkernel-0:5.14.0-570.125.1.el9_62026-07-01redhat
redhatkernel-0:6.12.0-211.29.1.el10_22026-06-30redhat
redhatkernel-0:5.14.0-687.19.1.el9_82026-06-29redhat
redhatkernel-0:6.12.0-55.84.1.el10_02026-06-29redhat
redhatkernel-0:4.18.0-553.136.1.el8_102026-06-19redhat
redhatkernel-rt-0:4.18.0-553.136.1.rt7.477.el8_102026-06-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 54× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 130 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:31 UTCEPSS rescore
  5. 2026-07-18 10:04 UTCEPSS rescore
  6. 2026-07-16 17:03 UTCEPSS rescore
  7. 2026-07-15 16:57 UTCEPSS rescore
  8. 2026-07-13 22:30 UTCEPSS rescore
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-12 05:46 UTCEPSS rescore
  11. 2026-07-11 23:28 UTCVendor advisory
  12. 2026-07-11 23:28 UTCGHSA enrichment
  13. 2026-07-09 19:10 UTCEPSS rescore
  14. 2026-07-08 23:50 UTCVendor advisory
  15. 2026-07-08 23:50 UTCGHSA enrichment
  16. 2026-07-07 13:46 UTCEPSS rescore
  17. 2026-07-06 16:27 UTCEPSS rescore
  18. 2026-07-06 02:23 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-07-01 10:10 UTCVendor advisory
  23. 2026-07-01 10:10 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 03:20 UTCVendor advisory
Show 75 more
  1. 2026-06-30 03:20 UTCGHSA enrichment
  2. 2026-06-29 14:18 UTCVendor advisory
  3. 2026-06-29 14:18 UTCGHSA enrichment
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-29 14:06 UTCEPSS rescore
  6. 2026-06-28 20:51 UTCVendor advisory
  7. 2026-06-28 20:51 UTCGHSA enrichment
  8. 2026-06-28 14:07 UTCEPSS rescore
  9. 2026-06-28 07:25 UTCVendor advisory
  10. 2026-06-28 07:25 UTCGHSA enrichment
  11. 2026-06-28 04:56 UTCEPSS rescore
  12. 2026-06-28 04:56 UTCEPSS rescore
  13. 2026-06-27 18:38 UTCVendor advisory
  14. 2026-06-27 18:38 UTCGHSA enrichment
  15. 2026-06-27 05:51 UTCVendor advisory
  16. 2026-06-27 05:51 UTCGHSA enrichment
  17. 2026-06-27 03:08 UTCEPSS rescore
  18. 2026-06-26 17:05 UTCVendor advisory
  19. 2026-06-26 17:04 UTCGHSA enrichment
  20. 2026-06-26 02:32 UTCVendor advisory
  21. 2026-06-26 02:32 UTCGHSA enrichment
  22. 2026-06-25 13:49 UTCEPSS rescore
  23. 2026-06-25 13:45 UTCVendor advisory
  24. 2026-06-25 13:45 UTCGHSA enrichment
  25. 2026-06-25 00:58 UTCVendor advisory
  26. 2026-06-25 00:58 UTCGHSA enrichment
  27. 2026-06-24 14:05 UTCEPSS rescore
  28. 2026-06-23 21:33 UTCEPSS rescore
  29. 2026-06-23 21:33 UTCEPSS rescore
  30. 2026-06-22 14:25 UTCEPSS rescore
  31. 2026-06-22 14:25 UTCEPSS rescore
  32. 2026-06-21 14:56 UTCEPSS rescore
  33. 2026-06-21 14:56 UTCEPSS rescore
  34. 2026-06-21 01:59 UTCEPSS rescore
  35. 2026-06-21 01:59 UTCEPSS rescore
  36. 2026-06-19 19:26 UTCEPSS rescore
  37. 2026-06-19 19:26 UTCEPSS rescore
  38. 2026-06-18 17:52 UTCEPSS rescore
  39. 2026-06-18 17:52 UTCEPSS rescore
  40. 2026-06-17 18:42 UTCGHSA enrichment
  41. 2026-06-17 17:53 UTCEPSS rescore
  42. 2026-06-17 04:53 UTCGHSA enrichment
  43. 2026-06-16 17:52 UTCEPSS rescore
  44. 2026-06-16 16:06 UTCGHSA enrichment
  45. 2026-06-16 02:15 UTCGHSA enrichment
  46. 2026-06-15 17:49 UTCEPSS rescore
  47. 2026-06-15 13:29 UTCGHSA enrichment
  48. 2026-06-14 22:09 UTCGHSA enrichment
  49. 2026-06-14 09:23 UTCGHSA enrichment
  50. 2026-06-13 23:00 UTCEPSS rescore
  51. 2026-06-13 20:38 UTCGHSA enrichment
  52. 2026-06-13 07:11 UTCGHSA enrichment
  53. 2026-06-12 23:12 UTCEPSS rescore
  54. 2026-06-12 23:12 UTCEPSS rescore
  55. 2026-06-12 18:24 UTCGHSA enrichment
  56. 2026-06-12 05:39 UTCGHSA enrichment
  57. 2026-06-11 16:53 UTCGHSA enrichment
  58. 2026-06-11 14:00 UTCEPSS rescore
  59. 2026-06-11 04:07 UTCGHSA enrichment
  60. 2026-06-10 22:18 UTCEPSS rescore
  61. 2026-06-10 15:21 UTCGHSA enrichment
  62. 2026-06-10 13:22 UTCEPSS rescore
  63. 2026-06-10 13:22 UTCEPSS rescore
  64. 2026-06-10 02:33 UTCGHSA enrichment
  65. 2026-06-09 13:48 UTCGHSA enrichment
  66. 2026-06-09 01:02 UTCGHSA enrichment
  67. 2026-06-08 14:17 UTCEPSS rescore
  68. 2026-06-08 14:17 UTCEPSS rescore
  69. 2026-06-08 12:15 UTCGHSA enrichment
  70. 2026-06-07 23:29 UTCGHSA enrichment
  71. 2026-06-07 15:25 UTCEPSS rescore
  72. 2026-06-07 15:25 UTCEPSS rescore
  73. 2026-06-07 10:43 UTCGHSA enrichment
  74. 2026-06-06 21:58 UTCGHSA enrichment
  75. 2026-06-06 13:47 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-46090?
CVE-2026-46090 is a high vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix peer runtime UAF during format-change stop loopbackcheckformat() may stop the capture side when playback starts with parameters that no longer match a running capture stream. Commit 826af7fa62e3 ("ALSA: aloop: Fix…
When was CVE-2026-46090 disclosed?
CVE-2026-46090 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on July 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46090 actively exploited?
CVE-2026-46090 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46090?
CVE-2026-46090 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-46090?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46090, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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