CVE-2026-72461

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: fix refcount leak when updating the sk_ctx

Currently update_sk_ctx() transfers the plabel reference, unfortunately it is also unconditionally put in the caller. Ideally we would make the caller conditionally put the reference based on whether it was transferred but for now just fix the bug by getting a reference.

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 (3)

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

apparmor: fix refcount leak when updating the sk_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b8642f1478982a97ca2eb59f70f631a9de42ae11
generic

apparmor: fix refcount leak when updating the sk_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6d25e7b47616cb2db43351210929c8f19dc305a3
generic

apparmor: fix refcount leak when updating the sk_ctx - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/045dbe89ac31709abd73390d0805d52fece7ef39

Vendor Advisories for CVE-2026-72461(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 05:37 UTCEG score recompute
  2. 2026-08-21 05:37 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 17:53 UTCGHSA enrichment
  5. 2026-08-20 06:09 UTCGHSA enrichment
  6. 2026-08-19 18:24 UTCEG score recompute
  7. 2026-08-19 18:24 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 06:20 UTCGHSA enrichment
  10. 2026-08-18 18:29 UTCEG score recompute
  11. 2026-08-18 18:29 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 06:44 UTCGHSA enrichment
  15. 2026-08-17 18:59 UTCEG score recompute
  16. 2026-08-17 18:59 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 05:25 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-2026-72461?
CVE-2026-72461 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: apparmor: fix refcount leak when updating the sk_ctx Currently updateskctx() transfers the plabel reference, unfortunately it is also unconditionally put in the caller. Ideally we would make the caller conditionally put the…
When was CVE-2026-72461 disclosed?
CVE-2026-72461 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-2026-72461 actively exploited?
CVE-2026-72461 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 96.5% of all scored CVEs.
What is the CVSS score of CVE-2026-72461?
CVE-2026-72461 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-72461?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72461, 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-2026-72461

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