CVE-2026-72842

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-14. a secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.9Exploit: None knownExposed: 0

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

luci-app-lxc contains an ACL inconsistency vulnerability that allows low-privileged authenticated LuCI users to access backend container management routes without proper authorization checks. Attackers can exploit path traversal via /.%2E in the lxc_name parameter to escape container directories and control host-side scripts executed through lxc.hook.start-host, achieving root code execution on the OpenWrt host.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity99% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

OpenWrt luci-app-lxc ACL Inconsistency Authentication Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openwrt-luci-app-lxc-acl-inconsistency-authentication-bypass
github Patch Available🟡 PoC Available

luci-app-lxc ACL inconsistency allows a low-privileged LuCI user to gain OpenWrt host root · Advisory · openwrt/luci · GitHub

https://github.com/openwrt/luci/security/advisories/GHSA-jf59-v86x-fwf2

Vendor Advisories for CVE-2026-72842(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.

Data Freshness Timeline

(refreshed 60× 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.

  1. 2026-08-21 06:51 UTCGHSA enrichment
  2. 2026-08-21 02:37 UTCEG score recompute
  3. 2026-08-21 02:37 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 22:25 UTCGHSA enrichment
  6. 2026-08-20 18:14 UTCGHSA enrichment
  7. 2026-08-20 14:03 UTCGHSA enrichment
  8. 2026-08-20 09:05 UTCGHSA enrichment
  9. 2026-08-20 04:54 UTCGHSA enrichment
  10. 2026-08-20 00:42 UTCGHSA enrichment
  11. 2026-08-19 20:28 UTCEG score recompute
  12. 2026-08-19 20:28 UTCGHSA enrichment
  13. 2026-08-19 17:04 UTCEPSS rescore
  14. 2026-08-19 16:17 UTCGHSA enrichment
  15. 2026-08-19 11:56 UTCGHSA enrichment
  16. 2026-08-19 07:44 UTCGHSA enrichment
  17. 2026-08-19 03:33 UTCGHSA enrichment
  18. 2026-08-18 23:22 UTCGHSA enrichment
  19. 2026-08-18 19:11 UTCGHSA enrichment
  20. 2026-08-18 14:59 UTCEG score recompute
  21. 2026-08-18 14:59 UTCGHSA enrichment
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 10:10 UTCGHSA enrichment
  25. 2026-08-18 05:58 UTCGHSA enrichment
Show 41 more
  1. 2026-08-18 01:47 UTCGHSA enrichment
  2. 2026-08-17 21:35 UTCGHSA enrichment
  3. 2026-08-17 17:22 UTCEG score recompute
  4. 2026-08-17 17:22 UTCGHSA enrichment
  5. 2026-08-17 13:47 UTCEPSS rescore
  6. 2026-08-17 13:11 UTCGHSA enrichment
  7. 2026-08-17 09:00 UTCGHSA enrichment
  8. 2026-08-17 04:49 UTCGHSA enrichment
  9. 2026-08-17 00:38 UTCGHSA enrichment
  10. 2026-08-16 20:27 UTCGHSA enrichment
  11. 2026-08-16 16:15 UTCEG score recompute
  12. 2026-08-16 16:15 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 12:04 UTCGHSA enrichment
  16. 2026-08-16 07:53 UTCGHSA enrichment
  17. 2026-08-16 03:42 UTCEG score recompute
  18. 2026-08-16 03:42 UTCGHSA enrichment
  19. 2026-08-16 02:15 UTCEPSS rescore
  20. 2026-08-15 23:31 UTCGHSA enrichment
  21. 2026-08-15 19:20 UTCGHSA enrichment
  22. 2026-08-15 15:09 UTCGHSA enrichment
  23. 2026-08-15 10:58 UTCGHSA enrichment
  24. 2026-08-15 06:47 UTCGHSA enrichment
  25. 2026-08-15 01:55 UTCEG score recompute
  26. 2026-08-15 01:55 UTCGHSA enrichment
  27. 2026-08-15 01:31 UTCEPSS rescore
  28. 2026-08-14 21:44 UTCGHSA enrichment
  29. 2026-08-14 17:33 UTCEG score recompute
  30. 2026-08-14 17:33 UTCGHSA enrichment
  31. 2026-08-14 17:06 UTCGHSA enrichment
  32. 2026-08-14 16:44 UTCEG score recompute
  33. 2026-08-14 16:44 UTCGHSA enrichment
  34. 2026-08-14 15:10 UTCGHSA enrichment
  35. 2026-08-14 10:59 UTCGHSA enrichment
  36. 2026-08-14 06:48 UTCGHSA enrichment
  37. 2026-08-14 02:36 UTCEG score recompute
  38. 2026-08-14 02:36 UTCGHSA enrichment
  39. 2026-08-13 22:25 UTCEG score recompute
  40. 2026-08-13 22:09 UTCEG score recompute
  41. 2026-08-13 22:09 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72842?
CVE-2026-72842 is a critical vulnerability published on August 13, 2026. luci-app-lxc contains an ACL inconsistency vulnerability that allows low-privileged authenticated LuCI users to access backend container management routes without proper authorization checks. Attackers can exploit path traversal via /.%2E in the lxc_name parameter to escape container directories…
When was CVE-2026-72842 disclosed?
CVE-2026-72842 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72842 actively exploited?
CVE-2026-72842 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 64.5% of all scored CVEs.
What is the CVSS score of CVE-2026-72842?
CVE-2026-72842 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-72842?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72842, 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

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