CVE-2026-72842

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM 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(medium)
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

September 9, 2026

Advisory Details (2)

Auto-updated Sep 16, 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 48× in last 7d / 204× 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.

Showing the most recent 100 of 265 total refreshes for this CVE.

  1. 2026-09-19 20:37 UTCGHSA enrichment
  2. 2026-09-19 16:16 UTCEG score recompute
  3. 2026-09-19 16:16 UTCGHSA enrichment
  4. 2026-09-19 12:04 UTCGHSA enrichment
  5. 2026-09-19 07:50 UTCGHSA enrichment
  6. 2026-09-19 03:39 UTCGHSA enrichment
  7. 2026-09-18 23:27 UTCEG score recompute
  8. 2026-09-18 23:27 UTCGHSA enrichment
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 19:16 UTCGHSA enrichment
  11. 2026-09-18 15:01 UTCGHSA enrichment
  12. 2026-09-18 10:49 UTCGHSA enrichment
  13. 2026-09-18 06:38 UTCGHSA enrichment
  14. 2026-09-18 02:27 UTCGHSA enrichment
  15. 2026-09-17 22:16 UTCEG score recompute
  16. 2026-09-17 22:16 UTCGHSA enrichment
  17. 2026-09-17 13:18 UTCGHSA enrichment
  18. 2026-09-17 08:15 UTCGHSA enrichment
  19. 2026-09-17 04:03 UTCGHSA enrichment
  20. 2026-09-16 23:51 UTCEG score recompute
  21. 2026-09-16 23:51 UTCGHSA enrichment
  22. 2026-09-16 14:08 UTCEPSS rescore
  23. 2026-09-16 10:27 UTCGHSA enrichment
  24. 2026-09-16 06:16 UTCEG score recompute
  25. 2026-09-16 06:16 UTCGHSA enrichment
Show 75 more
  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-16 02:04 UTCGHSA enrichment
  3. 2026-09-15 21:52 UTCGHSA enrichment
  4. 2026-09-15 16:20 UTCGHSA enrichment
  5. 2026-09-15 12:08 UTCGHSA enrichment
  6. 2026-09-15 06:09 UTCEG score recompute
  7. 2026-09-15 06:09 UTCGHSA enrichment
  8. 2026-09-15 03:12 UTCEPSS rescore
  9. 2026-09-15 01:53 UTCGHSA enrichment
  10. 2026-09-14 21:41 UTCGHSA enrichment
  11. 2026-09-14 17:08 UTCGHSA enrichment
  12. 2026-09-14 12:57 UTCGHSA enrichment
  13. 2026-09-14 08:45 UTCGHSA enrichment
  14. 2026-09-14 04:34 UTCGHSA enrichment
  15. 2026-09-14 00:23 UTCGHSA enrichment
  16. 2026-09-13 20:12 UTCEG score recompute
  17. 2026-09-13 20:12 UTCGHSA enrichment
  18. 2026-09-13 16:01 UTCGHSA enrichment
  19. 2026-09-13 11:50 UTCGHSA enrichment
  20. 2026-09-13 07:39 UTCGHSA enrichment
  21. 2026-09-13 03:28 UTCEG score recompute
  22. 2026-09-13 03:28 UTCGHSA enrichment
  23. 2026-09-12 23:16 UTCGHSA enrichment
  24. 2026-09-12 19:04 UTCEG score recompute
  25. 2026-09-12 19:04 UTCGHSA enrichment
  26. 2026-09-12 15:02 UTCEPSS rescore
  27. 2026-09-12 14:53 UTCGHSA enrichment
  28. 2026-09-12 10:42 UTCGHSA enrichment
  29. 2026-09-12 06:29 UTCGHSA enrichment
  30. 2026-09-12 02:17 UTCGHSA enrichment
  31. 2026-09-11 22:05 UTCGHSA enrichment
  32. 2026-09-11 17:52 UTCEG score recompute
  33. 2026-09-11 17:52 UTCGHSA enrichment
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-11 13:41 UTCEG score recompute
  36. 2026-09-11 13:40 UTCGHSA enrichment
  37. 2026-09-11 07:11 UTCGHSA enrichment
  38. 2026-09-11 02:59 UTCGHSA enrichment
  39. 2026-09-10 22:47 UTCGHSA enrichment
  40. 2026-09-10 18:33 UTCGHSA enrichment
  41. 2026-09-10 14:12 UTCGHSA enrichment
  42. 2026-09-10 09:56 UTCEG score recompute
  43. 2026-09-10 09:56 UTCGHSA enrichment
  44. 2026-09-10 09:35 UTCEPSS rescore
  45. 2026-09-10 05:44 UTCGHSA enrichment
  46. 2026-09-10 01:33 UTCGHSA enrichment
  47. 2026-09-09 20:50 UTCGHSA enrichment
  48. 2026-09-09 15:43 UTCGHSA enrichment
  49. 2026-09-09 09:03 UTCGHSA enrichment
  50. 2026-09-09 04:51 UTCEG score recompute
  51. 2026-09-09 04:51 UTCGHSA enrichment
  52. 2026-09-08 22:01 UTCEPSS rescore
  53. 2026-09-08 05:02 UTCGHSA enrichment
  54. 2026-09-08 00:50 UTCGHSA enrichment
  55. 2026-09-07 20:38 UTCGHSA enrichment
  56. 2026-09-07 16:27 UTCEG score recompute
  57. 2026-09-07 16:27 UTCGHSA enrichment
  58. 2026-09-07 05:42 UTCGHSA enrichment
  59. 2026-09-06 22:54 UTCGHSA enrichment
  60. 2026-09-06 18:38 UTCGHSA enrichment
  61. 2026-09-06 14:26 UTCEG score recompute
  62. 2026-09-06 14:26 UTCGHSA enrichment
  63. 2026-09-06 13:48 UTCEPSS rescore
  64. 2026-09-06 10:15 UTCGHSA enrichment
  65. 2026-09-06 05:56 UTCGHSA enrichment
  66. 2026-09-06 01:45 UTCGHSA enrichment
  67. 2026-09-05 21:29 UTCGHSA enrichment
  68. 2026-09-05 17:18 UTCEG score recompute
  69. 2026-09-05 17:18 UTCGHSA enrichment
  70. 2026-09-05 13:04 UTCGHSA enrichment
  71. 2026-09-05 08:53 UTCGHSA enrichment
  72. 2026-09-05 04:40 UTCGHSA enrichment
  73. 2026-09-05 00:28 UTCGHSA enrichment
  74. 2026-09-04 19:14 UTCGHSA enrichment
  75. 2026-09-04 14:36 UTCEG score recompute

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 September 9, 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 63.8% 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.

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