CVE-2026-47326

MEDIUMNVD 5.55.5—Trending — 3 sources updated this week

5.5

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(high)
EPSS: 2.2%
KEV: Not listed

Published

May 28, 2026

Last Modified

May 29, 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.

GHSA-rpqm-wqwm-759w
GitHub Security AdvisoriesMedium
Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big...

Weakness Classification(1)

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

CWE-401Missing Release of Memory after Effective Lifetime (Memory Leak)

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-01 01:03 UTCEG score recompute
2026-06-01 01:03 UTCGHSA enrichment
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 18:47 UTCEG score recompute

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 May 29, 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 2.2% 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-47326

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CVE-2026-47326

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

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

📣 Vendor Advisories for CVE-2026-47326(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)