CVE-2026-34444

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: HIGH) published 2026-04-07. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 10.0Exploit: NoneExposed: 0

A fix is available — apply it.

Lupa integrates the runtimes of Lua or LuaJIT2 into CPython. In 2.6 and earlier, attribute_filter is not consistently applied when attributes are accessed through built-in functions like getattr and setattr. This allows an attacker to bypass the intended restrictions and eventually achieve arbitrary code execution.

CVSS v3
10.0
EG Score
10.0(medium)
EPSS
45.1%
KEV
Not listed

Published

April 6, 2026

Last Modified

June 30, 2026

Advisory Details (5)

Auto-updated Jul 7, 2026
🔬 Proof of concept available. Patch available. Sources: redhat, github.
redhat Patch Available
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34444.json
redhat

2455413 – (CVE-2026-34444) CVE-2026-34444 lupa: Lupa: Arbitrary Code Execution due to inconsistent attribute filtering

https://bugzilla.redhat.com/show_bug.cgi?id=2455413
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-34444
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:22993
github Patch Available🟡 PoC Available

Sandbox escape and RCE due to incomplete attribute_filter enforcement in getattr / setattr · Advisory · scoder/lupa · GitHub

https://github.com/scoder/lupa/security/advisories/GHSA-69v7-xpr6-6gjm

Vendor Advisories for CVE-2026-34444(1)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatsatellite/foreman-mcp-server-rhel9:17804920082026-06-03redhat
piplupa—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
lupa0.1 ... 2.6 (46 versions)——

Weakness Classification(4)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 46× 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 156 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-34444?
CVE-2026-34444 is a critical vulnerability published on April 6, 2026. Lupa integrates the runtimes of Lua or LuaJIT2 into CPython. In 2.6 and earlier, attribute_filter is not consistently applied when attributes are accessed through built-in functions like getattr and setattr. This allows an attacker to bypass the intended restrictions and eventually achieve…
When was CVE-2026-34444 disclosed?
CVE-2026-34444 was first published in the National Vulnerability Database on April 6, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34444 actively exploited?
CVE-2026-34444 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-34444?
CVE-2026-34444 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-34444?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34444, 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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