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
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 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)
EPSS
0.7%
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.

Weakness Classification(1)

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

All Vendor Advisories

(10)

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 11× in last 7d / 66× 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 143 total refreshes for this CVE.

  1. 2026-07-16 02:51 UTCEG score recompute
  2. 2026-07-16 02:51 UTCVendor advisory
  3. 2026-07-16 02:51 UTCGHSA enrichment
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-13 22:30 UTCEPSS rescore
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-11 19:47 UTCEG score recompute
  8. 2026-07-11 19:47 UTCVendor advisory
  9. 2026-07-11 19:47 UTCGHSA enrichment
  10. 2026-07-11 08:27 UTCEPSS rescore
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-08 18:05 UTCEG score recompute
  13. 2026-07-08 18:05 UTCGHSA enrichment
  14. 2026-07-07 13:46 UTCEPSS rescore
  15. 2026-07-06 16:27 UTCEPSS rescore
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-02 10:26 UTCEG score recompute
  18. 2026-07-02 10:26 UTCVendor advisory
  19. 2026-07-02 10:25 UTCGHSA enrichment
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-07-01 02:45 UTCEG score recompute
  22. 2026-07-01 02:45 UTCVendor advisory
  23. 2026-07-01 02:45 UTCGHSA enrichment
  24. 2026-06-29 20:55 UTCEG score recompute
  25. 2026-06-29 20:55 UTCVendor advisory
Show 75 more
  1. 2026-06-29 20:55 UTCGHSA enrichment
  2. 2026-06-29 14:06 UTCEPSS rescore
  3. 2026-06-29 14:06 UTCEPSS rescore
  4. 2026-06-28 20:06 UTCEG score recompute
  5. 2026-06-28 20:06 UTCVendor advisory
  6. 2026-06-28 20:06 UTCGHSA enrichment
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-28 04:56 UTCEPSS rescore
  10. 2026-06-27 19:16 UTCEG score recompute
  11. 2026-06-27 19:16 UTCVendor advisory
  12. 2026-06-27 19:16 UTCGHSA enrichment
  13. 2026-06-27 03:08 UTCEPSS rescore
  14. 2026-06-26 18:26 UTCEG score recompute
  15. 2026-06-26 18:26 UTCVendor advisory
  16. 2026-06-26 18:26 UTCGHSA enrichment
  17. 2026-06-25 17:15 UTCEG score recompute
  18. 2026-06-25 17:15 UTCVendor advisory
  19. 2026-06-25 17:14 UTCGHSA enrichment
  20. 2026-06-25 13:49 UTCEPSS rescore
  21. 2026-06-24 16:25 UTCEG score recompute
  22. 2026-06-24 16:25 UTCVendor advisory
  23. 2026-06-24 16:24 UTCGHSA enrichment
  24. 2026-06-24 14:05 UTCEPSS rescore
  25. 2026-06-23 21:33 UTCEPSS rescore
  26. 2026-06-23 21:33 UTCEPSS rescore
  27. 2026-06-22 14:25 UTCEPSS rescore
  28. 2026-06-22 14:25 UTCEPSS rescore
  29. 2026-06-21 01:59 UTCEPSS rescore
  30. 2026-06-21 01:59 UTCEPSS rescore
  31. 2026-06-19 19:26 UTCEPSS rescore
  32. 2026-06-19 19:26 UTCEPSS rescore
  33. 2026-06-18 23:56 UTCEG score recompute
  34. 2026-06-18 23:56 UTCVendor advisory
  35. 2026-06-18 23:55 UTCGHSA enrichment
  36. 2026-06-18 17:52 UTCEPSS rescore
  37. 2026-06-18 17:52 UTCEPSS rescore
  38. 2026-06-17 17:53 UTCEPSS rescore
  39. 2026-06-17 17:50 UTCEG score recompute
  40. 2026-06-17 17:50 UTCVendor advisory
  41. 2026-06-17 17:49 UTCGHSA enrichment
  42. 2026-06-16 15:37 UTCEG score recompute
  43. 2026-06-16 15:37 UTCVendor advisory
  44. 2026-06-16 15:36 UTCGHSA enrichment
  45. 2026-06-15 17:49 UTCEPSS rescore
  46. 2026-06-15 17:49 UTCEPSS rescore
  47. 2026-06-15 12:50 UTCEG score recompute
  48. 2026-06-15 12:50 UTCVendor advisory
  49. 2026-06-15 12:49 UTCGHSA enrichment
  50. 2026-06-14 23:18 UTCEPSS rescore
  51. 2026-06-14 11:50 UTCEG score recompute
  52. 2026-06-14 11:50 UTCVendor advisory
  53. 2026-06-14 11:50 UTCGHSA enrichment
  54. 2026-06-13 23:00 UTCEPSS rescore
  55. 2026-06-13 11:01 UTCEG score recompute
  56. 2026-06-13 11:01 UTCVendor advisory
  57. 2026-06-13 11:01 UTCGHSA enrichment
  58. 2026-06-12 23:12 UTCEPSS rescore
  59. 2026-06-12 23:12 UTCEPSS rescore
  60. 2026-06-12 10:11 UTCEG score recompute
  61. 2026-06-12 10:11 UTCVendor advisory
  62. 2026-06-12 10:10 UTCGHSA enrichment
  63. 2026-06-11 14:00 UTCEPSS rescore
  64. 2026-06-11 09:20 UTCEG score recompute
  65. 2026-06-11 09:20 UTCVendor advisory
  66. 2026-06-11 09:20 UTCGHSA enrichment
  67. 2026-06-10 22:18 UTCEPSS rescore
  68. 2026-06-10 13:22 UTCEPSS rescore
  69. 2026-06-10 13:22 UTCEPSS rescore
  70. 2026-06-10 08:30 UTCEG score recompute
  71. 2026-06-10 08:30 UTCVendor advisory
  72. 2026-06-10 08:30 UTCGHSA enrichment
  73. 2026-06-09 07:41 UTCEG score recompute
  74. 2026-06-09 07:41 UTCVendor advisory
  75. 2026-06-09 07:41 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 0.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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