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
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 10.0Exploit: Elevated riskExposed services: Not assessed

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
10.0CRITICALmedium confidence
EG Risk
61
EG Risk 61/100

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
Severity100% × 45%
Exploitation40% × 40%
Automatability0% × 15%
EPSS PROB
0.8%
EPSS %ILE
55th
KEV
Not listed

Published

April 6, 2026

Last Modified

July 15, 2026

Advisory Details (5)

Auto-updated Oct 7, 2026
🔬 Proof of concept available. Patch available. Sources: github, redhat.
redhatMentions a patch (unverified)
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
redhatMentions a patch (unverified)

CVE-2026-34444 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-34444
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:22993
githubMentions a patch (unverified)🟡 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 / EcosystemFix (by version range) / 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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
python-lupa1.10+dfsg-1 ... 2.4+dfsg-1 (6 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
python-lupa1.14.1+dfsg-1, 2.2+dfsg-1, 2.4+dfsg-1
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
python-lupa2.4+dfsg-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
python-lupa2.4+dfsg-1
  • every version on: no fix on record
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
lupa0.1 ... 2.6 (46 versions)
  • every version through 2.6: no fix on record
—

Weakness Classification(4)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 25× 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 314 total refreshes for this CVE.

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

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 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 0.8% probability of exploitation in the next 30 days (55th percentile of EPSS-scored CVEs).
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?
A fix for CVE-2026-34444 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-34444 are linked in the Vendor Advisories panel on this page.

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