CVE-2026-59890

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (32nd percentile of EPSS-scored CVEs). 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
Elevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100CISA SSVC

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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
32nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 8, 2026

Last Modified

July 13, 2026

Advisory Details (3)

Auto-updated Jul 8, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
githubMentions a patch (unverified)🟡 PoC Available

MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+ · Advisory · pypa/setuptools · GitHub

https://github.com/pypa/setuptools/security/advisories/GHSA-h35f-9h28-mq5c
github_release Patch Available

v83.0.0

Patch available: pypa/setuptools v83.0.0

https://github.com/pypa/setuptools/releases/tag/v83.0.0
github_commit Patch Available

commit dd9f436a3648 (pypa/setuptools)

Patch available: pypa/setuptools v83.0.0 (contains commit dd9f436a3648)

https://github.com/pypa/setuptools/commit/dd9f436a36486b4cb8a4c70a2321548b0be09b8f

Vendor Advisories for CVE-2026-59890(3)

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 / EcosystemFix (by version range) / PatchReleasedSource
redhatpython-setuptools-main-83.0.0-4.hum12026-07-10redhat

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 rangeFix by version rangeDependents
setuptools0.6b1 ... 9.1 (623 versions)
  • every version up to 83.0.0: fixed in 83.0.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× 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 182 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-59890?
CVE-2026-59890 is a medium vulnerability published on July 8, 2026. setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode…
When was CVE-2026-59890 disclosed?
CVE-2026-59890 was first published on July 8, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59890 actively exploited?
CVE-2026-59890 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59890?
CVE-2026-59890 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-59890?
A fix for CVE-2026-59890 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-59890 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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