CVE-2026-47326

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-28. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 9, 2026

Advisory Details (1)

Auto-updated May 29, 2026
No patch confirmed yet.
generic

~ubuntu-kernel/ubuntu/+source/linux/+git/noble - [no description]

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=8d858ecb7e2e216ca2987302a04c266f2355fefe

Vendor Advisories for CVE-2026-47326(1)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-22.22) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-35.35) @ questing2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-124.124) @ noble2026-08-25ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1018.19) @ questing2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1059.65+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1059.65~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-7.0 (7.0.0-1007.7) @ resolute2026-08-25ubuntu

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(1)

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

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 4× in last 7d / 55× 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 204 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-47326?
CVE-2026-47326 is a medium vulnerability published on May 28, 2026. Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.
When was CVE-2026-47326 disclosed?
CVE-2026-47326 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47326 actively exploited?
CVE-2026-47326 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 99.4% of all scored CVEs.
What is the CVSS score of CVE-2026-47326?
CVE-2026-47326 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-47326?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47326, 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

Explore the affected products and dependency analysis for CVE-2026-47326

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