CVE-2026-72459

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 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

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

apparmor: aa_label_alloc use aa_label_free on alloc failure

aa_label_alloc() allocates a secid before allocating or taking the label proxy. If the later proxy step fails, the error path only freed the label memory, leaking any resources initialized by aa_label_init().

Use aa_label_free() on the failure path so partially initialized labels release their secid and other label resources before the backing memory is freed.

CVSS v3
7.8
EG Score
7.8(high)
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
4%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cc2192899d502e3321e60cf1e91421e7309d089c
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bf310b044e85d4de670c94295c5d8e4c5bc5e7bc
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b5a9da5d36162d34db0f36abb15420e295176793
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b14fbacad77d64594228983ec20d61a224f3f491
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae02e603c0b39b29f3ce6fe3efe01b286af1a2a4
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7cb69e109610bba500e1ecb870f7988a4717208a
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6d91479174240f39e9edea250d95fa08c678a207
generic

apparmor: aa_label_alloc use aa_label_free on alloc failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/654fe7505dc6889724d4094fa64f89991afabfc3

Vendor Advisories for CVE-2026-72459(1)

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

Data Freshness Timeline

(refreshed 31× in last 7d / 31× 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.

  1. 2026-08-21 01:15 UTCEG score recompute
  2. 2026-08-21 01:15 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 14:03 UTCGHSA enrichment
  5. 2026-08-20 02:49 UTCEG score recompute
  6. 2026-08-20 02:49 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 15:34 UTCGHSA enrichment
  9. 2026-08-19 04:13 UTCGHSA enrichment
  10. 2026-08-18 17:00 UTCEG score recompute
  11. 2026-08-18 17:00 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 04:57 UTCGHSA enrichment
  15. 2026-08-17 17:44 UTCEG score recompute
  16. 2026-08-17 17:43 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 06:28 UTCEG score recompute
  19. 2026-08-17 06:28 UTCGHSA enrichment
  20. 2026-08-17 05:57 UTCEG score recompute 7.80
  21. 2026-08-17 05:57 UTCGHSA enrichment
  22. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  23. 2026-08-17 05:28 UTCEG score recompute
  24. 2026-08-17 05:28 UTCGHSA enrichment
  25. 2026-08-17 05:24 UTCMITRE cvelistV5
Show 6 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 02:15 UTCEPSS rescore
  4. 2026-08-15 06:23 UTCNVD update
  5. 2026-08-15 06:03 UTCEG score recompute
  6. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72459?
CVE-2026-72459 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: apparmor: aalabelalloc use aalabelfree on alloc failure aalabelalloc() allocates a secid before allocating or taking the label proxy. If the later proxy step fails, the error path only freed the label memory, leaking any resources…
When was CVE-2026-72459 disclosed?
CVE-2026-72459 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72459 actively exploited?
CVE-2026-72459 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 96.3% of all scored CVEs.
What is the CVSS score of CVE-2026-72459?
CVE-2026-72459 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-72459?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72459, 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-2026-72459

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