CVE-2026-41140

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 78% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: None knownExposed: 0

A fix is available — apply it.

Poetry is a dependency manager for Python. Prior to 2.3.4, the extractall() function in src/poetry/utils/helpers.py:410-426 extracts sdist tarballs without path traversal protection on Python versions where tarfile.data_filter is unavailable. Considering only Python versions which are still supported by Poetry, these are 3.10.0 - 3.10.12 and 3.11.0 - 3.11.4. This vulnerability is fixed in 2.3.4.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity87% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

April 24, 2026

Last Modified

July 15, 2026

Advisory Details (5)

Auto-updated Jun 30, 2026
Patch available. Sources: github, redhat.
redhat Patch Available
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41140.json
redhat

2461604 – (CVE-2026-41140) CVE-2026-41140 poetry: Poetry: Path traversal vulnerability allows arbitrary file write via malicious package extraction

https://bugzilla.redhat.com/show_bug.cgi?id=2461604
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-41140
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:24866
github Patch Available

Path traversal in tar extraction on Python 3.10.0 - 3.10.12 and 3.11.0 - 3.11.4 · Advisory · python-poetry/poetry · GitHub

https://github.com/python-poetry/poetry/security/advisories/GHSA-73h3-mf4w-8647

Vendor Advisories for CVE-2026-41140(2)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatansible-automation-platform-26/lightspeed-chatbot-rhel9:17801027322026-06-09redhat

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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
poetry1.3.2+dfsg-3 ... 2.3.4-2 (31 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
poetry—2.1.2+dfsg-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
poetry—2.1.2+dfsg-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
poetry0.1.0 ... 2.3.3 (184 versions)2.3.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 61× 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 161 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 14:47 UTCEG score recompute
  8. 2026-08-17 14:47 UTCVendor advisory
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 05:46 UTCEG score recompute
  12. 2026-08-16 05:46 UTCVendor advisory
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 02:09 UTCEG score recompute
  15. 2026-08-15 02:09 UTCVendor advisory
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 15:08 UTCVendor advisory
  18. 2026-08-14 04:06 UTCEG score recompute
  19. 2026-08-14 04:06 UTCVendor advisory
  20. 2026-08-13 22:00 UTCEPSS rescore
  21. 2026-08-13 04:48 UTCVendor advisory
  22. 2026-08-12 17:47 UTCEG score recompute
  23. 2026-08-12 17:47 UTCVendor advisory
  24. 2026-08-12 13:51 UTCEPSS rescore
  25. 2026-08-11 16:41 UTCEG score recompute
Show 75 more
  1. 2026-08-11 16:41 UTCVendor advisory
  2. 2026-08-11 13:43 UTCEPSS rescore
  3. 2026-08-11 02:08 UTCEG score recompute
  4. 2026-08-11 02:08 UTCVendor advisory
  5. 2026-08-11 00:00 UTCEPSS rescore
  6. 2026-08-10 12:47 UTCVendor advisory
  7. 2026-08-10 01:20 UTCVendor advisory
  8. 2026-08-09 14:19 UTCEG score recompute
  9. 2026-08-09 14:19 UTCVendor advisory
  10. 2026-08-09 13:46 UTCEPSS rescore
  11. 2026-08-09 03:17 UTCVendor advisory
  12. 2026-08-08 11:11 UTCVendor advisory
  13. 2026-08-07 23:33 UTCEG score recompute
  14. 2026-08-07 23:33 UTCVendor advisory
  15. 2026-08-07 12:32 UTCVendor advisory
  16. 2026-08-06 21:17 UTCEG score recompute
  17. 2026-08-06 21:17 UTCVendor advisory
  18. 2026-08-06 13:46 UTCEPSS rescore
  19. 2026-08-06 10:15 UTCVendor advisory
  20. 2026-08-05 22:55 UTCEG score recompute
  21. 2026-08-05 22:55 UTCVendor advisory
  22. 2026-08-05 19:17 UTCEPSS rescore
  23. 2026-08-04 15:10 UTCEPSS rescore
  24. 2026-08-04 10:38 UTCEPSS rescore
  25. 2026-08-03 21:00 UTCEG score recompute
  26. 2026-08-03 21:00 UTCVendor advisory
  27. 2026-08-03 10:36 UTCEPSS rescore
  28. 2026-08-02 22:01 UTCVendor advisory
  29. 2026-08-02 10:59 UTCEG score recompute
  30. 2026-08-02 10:59 UTCVendor advisory
  31. 2026-08-02 02:27 UTCEPSS rescore
  32. 2026-08-01 04:16 UTCEPSS rescore
  33. 2026-07-30 16:28 UTCEPSS rescore
  34. 2026-07-30 01:30 UTCEPSS rescore
  35. 2026-07-28 15:36 UTCEPSS rescore
  36. 2026-07-27 14:13 UTCEPSS rescore
  37. 2026-07-26 14:54 UTCEPSS rescore
  38. 2026-07-26 14:54 UTCEPSS rescore
  39. 2026-07-25 14:18 UTCEPSS rescore
  40. 2026-07-24 14:17 UTCEPSS rescore
  41. 2026-07-23 14:18 UTCEPSS rescore
  42. 2026-07-23 03:11 UTCEG score recompute▲ 8.10
  43. 2026-07-22 14:08 UTCEPSS rescore
  44. 2026-07-20 21:02 UTCOSV refresh
  45. 2026-07-20 17:08 UTCEPSS rescore
  46. 2026-07-19 14:31 UTCEPSS rescore
  47. 2026-07-19 02:29 UTCEPSS rescore
  48. 2026-07-18 10:04 UTCEPSS rescore
  49. 2026-07-16 17:03 UTCEPSS rescore
  50. 2026-07-15 16:57 UTCEPSS rescore
  51. 2026-07-15 16:57 UTCEPSS rescore
  52. 2026-07-15 02:00 UTCEPSS rescore
  53. 2026-07-13 22:30 UTCEPSS rescore
  54. 2026-07-13 06:13 UTCEPSS rescore
  55. 2026-07-13 06:13 UTCEPSS rescore
  56. 2026-07-12 05:46 UTCEPSS rescore
  57. 2026-07-11 08:27 UTCEPSS rescore
  58. 2026-07-09 19:10 UTCEPSS rescore
  59. 2026-07-08 15:15 UTCEPSS rescore
  60. 2026-07-07 13:46 UTCEPSS rescore
  61. 2026-07-06 16:27 UTCEPSS rescore
  62. 2026-07-06 16:27 UTCEPSS rescore
  63. 2026-07-06 02:23 UTCEPSS rescore
  64. 2026-07-06 02:23 UTCEPSS rescore
  65. 2026-07-05 02:30 UTCEPSS rescore
  66. 2026-07-04 06:31 UTCEPSS rescore
  67. 2026-07-01 15:06 UTCEPSS rescore
  68. 2026-06-30 23:22 UTCEPSS rescore
  69. 2026-06-30 04:32 UTCNVD updateCVSS v3 → 8.7 · severity → HIGH
  70. 2026-06-29 14:06 UTCEPSS rescore
  71. 2026-06-28 14:07 UTCEPSS rescore
  72. 2026-06-28 04:56 UTCEPSS rescore
  73. 2026-06-27 03:08 UTCEPSS rescore
  74. 2026-06-25 13:49 UTCEPSS rescore
  75. 2026-06-25 13:49 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-41140?
CVE-2026-41140 is a high vulnerability published on April 24, 2026. Poetry is a dependency manager for Python. Prior to 2.3.4, the extractall() function in src/poetry/utils/helpers.py:410-426 extracts sdist tarballs without path traversal protection on Python versions where tarfile.data_filter is unavailable. Considering only Python versions which are still…
When was CVE-2026-41140 disclosed?
CVE-2026-41140 was first published in the National Vulnerability Database on April 24, 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-2026-41140 actively exploited?
CVE-2026-41140 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 78.6% of all scored CVEs.
What is the CVSS score of CVE-2026-41140?
CVE-2026-41140 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-41140?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41140, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-41140

Explore →

Is Your Infrastructure Affected by CVE-2026-41140?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs