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
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 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)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

May 27, 2026

Last Modified

August 5, 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(16)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
redhatkernel-rt-0:3.10.0-1160.155.1.rt56.1307.el72026-07-17redhat
redhatkernel-0:4.18.0-305.197.1.el8_42026-07-06redhat
redhatkernel-0:4.18.0-477.150.1.el8_82026-07-06redhat
redhatkernel-0:3.10.0-1160.154.1.el72026-07-06redhat
redhatkernel-0:5.14.0-427.135.1.el9_42026-07-01redhat
redhatkernel-0:5.14.0-284.178.1.el9_22026-07-01redhat
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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc5-1~exp1 (335 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.88-1~bpo12+1 (21 versions)6.12.88-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (131 versions)7.0.4-1—

Weakness Classification(2)

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

Additional Vendor Advisories

(11)

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 8× in last 7d / 104× 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 249 total refreshes for this CVE.

  1. 2026-08-30 19:17 UTCEPSS rescore
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-28 21:41 UTCEPSS rescore
  4. 2026-08-27 14:25 UTCEPSS rescore
  5. 2026-08-26 14:46 UTCEPSS rescore
  6. 2026-08-25 05:20 UTCEG score recompute
  7. 2026-08-25 05:20 UTCVendor advisory
  8. 2026-08-25 05:19 UTCGHSA enrichment
  9. 2026-08-23 15:03 UTCEG score recompute
  10. 2026-08-23 15:03 UTCVendor advisory
  11. 2026-08-23 15:02 UTCGHSA enrichment
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 20:36 UTCVendor advisory
  14. 2026-08-21 20:36 UTCGHSA enrichment
  15. 2026-08-21 01:38 UTCEG score recompute
  16. 2026-08-21 01:38 UTCVendor advisory
  17. 2026-08-21 01:38 UTCGHSA enrichment
  18. 2026-08-20 22:55 UTCEPSS rescore
  19. 2026-08-20 11:20 UTCEG score recompute
  20. 2026-08-20 11:20 UTCVendor advisory
  21. 2026-08-20 11:20 UTCGHSA enrichment
  22. 2026-08-19 17:04 UTCEPSS rescore
  23. 2026-08-17 13:47 UTCEPSS rescore
  24. 2026-08-17 09:17 UTCVendor advisory
  25. 2026-08-17 09:17 UTCGHSA enrichment
Show 75 more
  1. 2026-08-16 15:37 UTCEG score recompute
  2. 2026-08-16 15:37 UTCVendor advisory
  3. 2026-08-16 15:37 UTCGHSA enrichment
  4. 2026-08-16 14:56 UTCEPSS rescore
  5. 2026-08-16 02:50 UTCEG score recompute
  6. 2026-08-16 02:50 UTCVendor advisory
  7. 2026-08-16 02:50 UTCGHSA enrichment
  8. 2026-08-16 02:14 UTCEPSS rescore
  9. 2026-08-15 02:59 UTCEG score recompute
  10. 2026-08-15 02:59 UTCVendor advisory
  11. 2026-08-15 02:59 UTCGHSA enrichment
  12. 2026-08-15 01:30 UTCEPSS rescore
  13. 2026-08-14 14:13 UTCVendor advisory
  14. 2026-08-14 14:13 UTCGHSA enrichment
  15. 2026-08-14 01:27 UTCVendor advisory
  16. 2026-08-14 01:27 UTCGHSA enrichment
  17. 2026-08-13 03:54 UTCVendor advisory
  18. 2026-08-13 03:54 UTCGHSA enrichment
  19. 2026-08-12 15:09 UTCEG score recompute
  20. 2026-08-12 15:09 UTCVendor advisory
  21. 2026-08-12 15:08 UTCGHSA enrichment
  22. 2026-08-12 13:51 UTCEPSS rescore
  23. 2026-08-12 02:21 UTCEG score recompute
  24. 2026-08-12 02:21 UTCVendor advisory
  25. 2026-08-12 02:21 UTCGHSA enrichment
  26. 2026-08-11 13:35 UTCVendor advisory
  27. 2026-08-11 13:35 UTCGHSA enrichment
  28. 2026-08-11 00:31 UTCEG score recompute
  29. 2026-08-11 00:31 UTCVendor advisory
  30. 2026-08-11 00:31 UTCGHSA enrichment
  31. 2026-08-11 00:00 UTCEPSS rescore
  32. 2026-08-10 11:44 UTCVendor advisory
  33. 2026-08-10 11:44 UTCGHSA enrichment
  34. 2026-08-09 22:56 UTCEG score recompute
  35. 2026-08-09 22:56 UTCVendor advisory
  36. 2026-08-09 22:56 UTCGHSA enrichment
  37. 2026-08-09 13:46 UTCEPSS rescore
  38. 2026-08-09 10:10 UTCVendor advisory
  39. 2026-08-09 10:10 UTCGHSA enrichment
  40. 2026-08-08 21:23 UTCEG score recompute
  41. 2026-08-08 21:23 UTCVendor advisory
  42. 2026-08-08 21:23 UTCGHSA enrichment
  43. 2026-08-08 16:37 UTCEPSS rescore
  44. 2026-08-08 05:37 UTCVendor advisory
  45. 2026-08-08 05:37 UTCGHSA enrichment
  46. 2026-08-07 16:51 UTCEG score recompute
  47. 2026-08-07 16:51 UTCVendor advisory
  48. 2026-08-07 16:51 UTCGHSA enrichment
  49. 2026-08-07 04:05 UTCVendor advisory
  50. 2026-08-07 04:05 UTCGHSA enrichment
  51. 2026-08-06 15:18 UTCEG score recompute
  52. 2026-08-06 15:18 UTCVendor advisory
  53. 2026-08-06 15:18 UTCGHSA enrichment
  54. 2026-08-06 13:47 UTCEPSS rescore
  55. 2026-08-06 02:27 UTCEG score recompute
  56. 2026-08-06 02:27 UTCVendor advisory
  57. 2026-08-06 02:27 UTCGHSA enrichment
  58. 2026-08-05 19:17 UTCEPSS rescore
  59. 2026-08-05 13:42 UTCEG score recompute
  60. 2026-08-05 13:42 UTCVendor advisory
  61. 2026-08-05 13:42 UTCGHSA enrichment
  62. 2026-08-04 15:10 UTCEPSS rescore
  63. 2026-08-04 10:39 UTCEPSS rescore
  64. 2026-08-04 05:20 UTCVendor advisory
  65. 2026-08-04 05:20 UTCGHSA enrichment
  66. 2026-08-03 16:27 UTCEG score recompute
  67. 2026-08-03 16:27 UTCVendor advisory
  68. 2026-08-03 16:27 UTCGHSA enrichment
  69. 2026-08-03 10:36 UTCEPSS rescore
  70. 2026-08-02 16:50 UTCVendor advisory
  71. 2026-08-02 16:50 UTCGHSA enrichment
  72. 2026-08-02 04:04 UTCEG score recompute
  73. 2026-08-02 04:04 UTCVendor advisory
  74. 2026-08-02 04:04 UTCGHSA enrichment
  75. 2026-08-02 02:27 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 August 5, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 98.9% of all scored CVEs.
What is the CVSS score of CVE-2026-46090?
CVE-2026-46090 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-46090

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