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)
EG Risk
—
EPSS
45.7%
KEV
Not listed

Published

April 6, 2026

Last Modified

July 15, 2026

Advisory Details (5)

Auto-updated Jul 22, 2026
🔬 Proof of concept available. Patch available. Sources: github, redhat.
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 8× in last 7d / 41× 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 145 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:31 UTCEPSS rescore
  5. 2026-07-19 02:29 UTCEPSS rescore
  6. 2026-07-18 10:04 UTCEPSS rescore
  7. 2026-07-17 17:29 UTCOSV refresh
  8. 2026-07-16 17:03 UTCEPSS rescore
  9. 2026-07-15 16:57 UTCEPSS rescore
  10. 2026-07-15 16:57 UTCEPSS rescore
  11. 2026-07-15 02:23 UTCNVD updateCVSS v3 → 10 · severity → CRITICAL
  12. 2026-07-15 02:00 UTCEPSS rescore
  13. 2026-07-15 01:21 UTCMITRE cvelistV5CVSS v3 → 8.1 · severity → HIGH
  14. 2026-07-13 22:30 UTCEPSS rescore
  15. 2026-07-13 06:13 UTCEPSS rescore
  16. 2026-07-13 06:13 UTCEPSS rescore
  17. 2026-07-12 05:46 UTCEPSS rescore
  18. 2026-07-11 08:27 UTCEPSS rescore
  19. 2026-07-09 19:10 UTCEPSS rescore
  20. 2026-07-08 15:15 UTCEPSS rescore
  21. 2026-07-07 13:46 UTCEPSS rescore
  22. 2026-07-06 16:27 UTCEPSS rescore
  23. 2026-07-06 16:27 UTCEPSS rescore
  24. 2026-07-06 02:23 UTCEPSS rescore
  25. 2026-07-06 02:23 UTCEPSS rescore
Show 75 more
  1. 2026-07-05 02:30 UTCEPSS rescore
  2. 2026-07-04 06:31 UTCEPSS rescore
  3. 2026-07-01 15:06 UTCEPSS rescore
  4. 2026-06-30 23:22 UTCEPSS rescore
  5. 2026-06-29 14:06 UTCEPSS rescore
  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-28 14:07 UTCEPSS rescore
  8. 2026-06-28 14:07 UTCEPSS rescore
  9. 2026-06-28 04:56 UTCEPSS rescore
  10. 2026-06-28 04:56 UTCEPSS rescore
  11. 2026-06-27 03:08 UTCEPSS rescore
  12. 2026-06-25 13:49 UTCEPSS rescore
  13. 2026-06-25 13:49 UTCEPSS rescore
  14. 2026-06-24 14:05 UTCEPSS rescore
  15. 2026-06-23 21:33 UTCEPSS rescore
  16. 2026-06-23 21:33 UTCEPSS rescore
  17. 2026-06-22 14:25 UTCEPSS rescore
  18. 2026-06-22 14:25 UTCEPSS rescore
  19. 2026-06-21 14:56 UTCEPSS rescore
  20. 2026-06-21 14:56 UTCEPSS rescore
  21. 2026-06-21 01:59 UTCEPSS rescore
  22. 2026-06-19 19:25 UTCEPSS rescore
  23. 2026-06-19 19:25 UTCEPSS rescore
  24. 2026-06-18 17:52 UTCEPSS rescore
  25. 2026-06-18 17:52 UTCEPSS rescore
  26. 2026-06-17 17:53 UTCEPSS rescore
  27. 2026-06-16 17:52 UTCEPSS rescore
  28. 2026-06-15 17:49 UTCEPSS rescore
  29. 2026-06-14 23:18 UTCEPSS rescore
  30. 2026-06-13 23:00 UTCEPSS rescore
  31. 2026-06-12 23:12 UTCEPSS rescore
  32. 2026-06-12 23:12 UTCEPSS rescore
  33. 2026-06-12 05:11 UTCVendor advisory
  34. 2026-06-12 05:11 UTCGHSA enrichment
  35. 2026-06-12 01:24 UTCVendor advisory
  36. 2026-06-12 01:24 UTCGHSA enrichment
  37. 2026-06-11 21:37 UTCVendor advisory
  38. 2026-06-11 21:37 UTCGHSA enrichment
  39. 2026-06-11 14:00 UTCEPSS rescore
  40. 2026-06-10 22:18 UTCEPSS rescore
  41. 2026-06-10 21:00 UTCVendor advisory
  42. 2026-06-10 21:00 UTCGHSA enrichment
  43. 2026-06-10 16:56 UTCVendor advisory
  44. 2026-06-10 16:56 UTCGHSA enrichment
  45. 2026-06-10 13:22 UTCEPSS rescore
  46. 2026-06-10 13:10 UTCVendor advisory
  47. 2026-06-10 13:10 UTCGHSA enrichment
  48. 2026-06-10 08:48 UTCVendor advisory
  49. 2026-06-10 08:48 UTCGHSA enrichment
  50. 2026-06-10 05:00 UTCVendor advisory
  51. 2026-06-10 05:00 UTCGHSA enrichment
  52. 2026-06-10 01:13 UTCVendor advisory
  53. 2026-06-10 01:13 UTCGHSA enrichment
  54. 2026-06-09 17:55 UTCVendor advisory
  55. 2026-06-09 17:55 UTCGHSA enrichment
  56. 2026-06-09 14:08 UTCVendor advisory
  57. 2026-06-09 14:08 UTCGHSA enrichment
  58. 2026-06-08 14:17 UTCEPSS rescore
  59. 2026-06-08 14:17 UTCEPSS rescore
  60. 2026-06-08 12:58 UTCVendor advisory
  61. 2026-06-08 12:58 UTCGHSA enrichment
  62. 2026-06-08 09:11 UTCVendor advisory
  63. 2026-06-08 09:11 UTCGHSA enrichment
  64. 2026-06-08 05:24 UTCVendor advisory
  65. 2026-06-08 05:24 UTCGHSA enrichment
  66. 2026-06-08 01:37 UTCVendor advisory
  67. 2026-06-08 01:37 UTCGHSA enrichment
  68. 2026-06-07 21:51 UTCVendor advisory
  69. 2026-06-07 21:51 UTCGHSA enrichment
  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 UTCVendor advisory

Related CVEs(same vendor + same CWE)

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 July 15, 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 45.7% 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.

Dependency Blast Radius

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