CVE-2026-47326
Memory leak in Ubuntu Linux AppArmor large notification response allocation
02 Description
Memory leak in Ubuntu Linux AppArmor large notification response allocation
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.09% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 0.5% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-26.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-05-28 18:26Z5 MO AGO
- Last updated
- 2026-05-28 19:25Z5 MO AGO
- Reserved
- 2026-05-19
- Assigning CNA
- canonical
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.5)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401Missing Release of Memory after Effective LifetimeVariant
- Data version
- 5.2
- Document digest
- a5e993b6227d3efafe4277c8be1a58a2ee025566c8b26231737cc155572325e2
05 Affected products
06 References
07 Fixed in
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-hwe-edge No fix yet
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.8 No fix yet
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.8 No fix yet
- linux-azure-fde No fix yet
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.8 No fix yet
- linux-gke No fix yet
- linux-gke-5.15 No fix yet
- linux-gkeop No fix yet
- linux-gkeop-5.15 No fix yet
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.8 No fix yet
- linux-intel-5.13 No fix yet
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.8 No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.11 No fix yet
- linux-riscv-5.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-allwinner-5.19 No fix yet
- linux-aws-5.19 No fix yet
- linux-aws-6.2 No fix yet
- linux-aws-6.5 No fix yet
- linux-aws-6.8 Fixed in 6.8.0-1057.60~22.04.1
- linux-azure-5.19 No fix yet
- linux-azure-6.2 No fix yet
- linux-azure-6.5 No fix yet
- linux-azure-6.8 Fixed in 6.8.0-1059.65~22.04.1
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-azure-fde-6.8 Fixed in 6.8.0-1058.65~22.04.1
- linux-gcp-5.19 No fix yet
- linux-gcp-6.2 No fix yet
- linux-gcp-6.5 No fix yet
- linux-gcp-6.8 Fixed in 6.8.0-1060.63~22.04.1
- linux-hwe-5.19 No fix yet
- linux-hwe-6.2 No fix yet
- linux-hwe-6.5 No fix yet
- linux-hwe-6.8 Fixed in 6.8.0-124.124~22.04.1
- linux-ibm-6.8 Fixed in 6.8.0-1057.58~22.04.1
- linux-intel-iot-realtime No fix yet
- linux-lowlatency-hwe-5.19 No fix yet
- linux-lowlatency-hwe-6.2 No fix yet
- linux-lowlatency-hwe-6.5 No fix yet
- linux-lowlatency-hwe-6.8 Fixed in 6.8.0-134.134.1~22.04.1
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
- linux-nvidia-6.8 Fixed in 6.8.0-1055.58~22.04.1
- linux-oem-5.17 No fix yet
- linux-oem-6.0 No fix yet
- linux-oem-6.1 No fix yet
- linux-oem-6.5 No fix yet
- linux-oracle-6.5 No fix yet
- linux-oracle-6.8 Fixed in 6.8.0-1054.55~22.04.1
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-riscv-5.19 No fix yet
- linux-riscv-6.5 No fix yet
- linux-riscv-6.8 Fixed in 6.8.0-124.124~22.04.1
3 further packages in Ubuntu 22.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux Fixed in 6.8.0-124.124
- linux-aws Fixed in 6.8.0-1057.60
- linux-aws-6.14 No fix yet
- linux-aws-6.17 Fixed in 6.17.0-1017.17~24.04.1
- linux-azure Fixed in 6.8.0-1058.64
- linux-azure-6.11 No fix yet
- linux-azure-6.17 Fixed in 6.17.0-1017.17~24.04.1
- linux-azure-fde Fixed in 6.8.0-1058.65
- linux-azure-nvidia No fix yet
- linux-gcp Fixed in 6.8.0-1060.63
- linux-gcp-6.11 No fix yet
- linux-gcp-6.14 No fix yet
- linux-gcp-6.17 Fixed in 6.17.0-1018.19~24.04.1
- linux-gke Fixed in 6.8.0-1055.61
- linux-gkeop Fixed in 6.8.0-1042.45
- linux-hwe-6.11 No fix yet
- linux-hwe-6.14 No fix yet
- linux-hwe-6.17 Fixed in 6.17.0-35.35~24.04.1
- linux-hwe-7.0 Fixed in 7.0.0-28.28~24.04.1
- linux-ibm Fixed in 6.8.0-1057.58
- linux-lowlatency Fixed in 6.8.0-134.134.1
- linux-lowlatency-hwe-6.11 No fix yet
- linux-nvidia Fixed in 6.8.0-1055.58
- linux-nvidia-6.11 No fix yet
- linux-nvidia-6.17 Fixed in 6.17.0-1021.21
- linux-nvidia-lowlatency Fixed in 6.8.0-1055.58.1
- linux-nvidia-tegra Fixed in 6.8.0-1026.26
- linux-oem-6.11 No fix yet
- linux-oem-6.14 No fix yet
- linux-oem-6.17 Fixed in 6.17.0-1024.24
- linux-oem-6.8 No fix yet
- linux-oracle Fixed in 6.8.0-1054.55
- linux-oracle-6.14 No fix yet
- linux-oracle-6.17 Fixed in 6.17.0-1016.16~24.04.1
- linux-raspi Fixed in 6.8.0-1057.61
- linux-raspi-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-riscv-6.14 No fix yet
- linux-riscv-6.17 Fixed in 6.17.0-35.35.1~24.04.1
1 further packages in Ubuntu 24.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- linux Fixed in 6.17.0-35.35
- linux-aws Fixed in 6.17.0-1017.17
- linux-azure Fixed in 6.17.0-1017.17
- linux-azure-fde No fix yet
- linux-gcp Fixed in 6.17.0-1018.19
- linux-oracle Fixed in 6.17.0-1016.16
- linux-raspi Fixed in 6.17.0-1018.18
- linux-realtime Fixed in 6.17.0-1014.16
- linux-riscv Fixed in 6.17.0-35.35.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- linux Fixed in 7.0.0-22.22
- linux-aws Fixed in 7.0.0-1006.6
- linux-azure Fixed in 7.0.0-1007.7
- linux-azure-fde Fixed in 7.0.0-1006.6
- linux-gcp Fixed in 7.0.0-1005.5
- linux-ibm Fixed in 7.0.0-1007.7
- linux-nvidia Fixed in 7.0.0-1009.9
- linux-oem-7.0 Fixed in 7.0.0-1008.8
- linux-oracle Fixed in 7.0.0-1005.5
- linux-raspi Fixed in 7.0.0-1011.11
- linux-realtime Fixed in 7.0.0-22.22.1
- linux-riscv Fixed in 7.0.0-22.22.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Nvidia-BlueField 24.04 LTS
- linux-bluefield Fixed in 6.8.0-1023.27
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 24.04 LTS
- linux-aws-fips Fixed in 6.8.0-1057.60+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 6.8.0-1059.65+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 6.8.0-124.124+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 6.8.0-1060.63+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 22.04 LTS
- linux-realtime-6.8 Fixed in 6.8.1-1052.53~22.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 24.04 LTS
- linux-raspi-realtime Fixed in 6.8.0-2046.47Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 6.8.1-1052.53Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime-6.14 No fix yet
- linux-realtime-6.17 Fixed in 6.17.0-1014.16~24.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.