CVE-2023-6021

HIGHNVD 7.57.7▲
EchelonGraph scoreHIGH confidence

Score elevated to 7.7 because EPSS predicts 37% probability of exploitation within the next 30 days (98th percentile of EPSS-scored CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: epss, nvd
Elevated
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 37%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

LFI in Ray's log API endpoint allows attackers to read any file on the server without authentication. The issue is fixed in version 2.8.1+. Ray maintainers' response can be found here: https://www.anyscale.com/blog/update-on-ray-cves-cve-2023-6019-cve-2023-6020-cve-2023-6021-cve-2023-48022-cve-2023-48023

CVSS v3
7.5
EG Score
7.7HIGHhigh confidence
EG Risk
66
EG Risk 66/100CISA 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
Severity77% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
37%
EPSS %ILE
98th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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

November 16, 2023

Last Modified

June 17, 2026

References (2)

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
ray0.1.1 ... 2.8.0 (76 versions)
  • every version up to 2.8.1: fixed in 2.8.1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 23× 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 127 total refreshes for this CVE.

  1. 2026-10-08 17:06 UTCEPSS rescore
  2. 2026-10-07 23:46 UTCEPSS rescore
  3. 2026-10-06 15:15 UTCEPSS rescore
  4. 2026-10-04 23:20 UTCEPSS rescore
  5. 2026-10-03 14:23 UTCEPSS rescore
  6. 2026-10-01 19:48 UTCEPSS rescore
  7. 2026-10-01 19:48 UTCEPSS rescore
  8. 2026-09-30 16:38 UTCEG score recompute
  9. 2026-09-30 15:01 UTCEPSS rescore
  10. 2026-09-30 15:01 UTCEPSS rescore
  11. 2026-09-28 13:49 UTCEPSS rescore
  12. 2026-09-26 00:22 UTCEPSS rescore
  13. 2026-09-24 14:01 UTCEPSS rescore
  14. 2026-09-24 14:01 UTCEPSS rescore
  15. 2026-09-23 13:46 UTCEPSS rescore
  16. 2026-09-18 19:26 UTCEPSS rescore
  17. 2026-09-16 14:06 UTCEPSS rescore
  18. 2026-09-16 05:11 UTCEPSS rescore
  19. 2026-09-16 05:11 UTCEPSS rescore
  20. 2026-09-15 03:08 UTCEPSS rescore
  21. 2026-09-12 14:58 UTCEPSS rescore
  22. 2026-09-11 14:51 UTCEPSS rescore
  23. 2026-09-11 09:34 UTCEPSS rescore
  24. 2026-09-08 21:58 UTCEPSS rescore
  25. 2026-09-07 15:59 UTCEPSS rescore
Show 75 more
  1. 2026-09-06 13:46 UTCEPSS rescore
  2. 2026-09-05 15:26 UTCEPSS rescore
  3. 2026-09-04 13:58 UTCEPSS rescore
  4. 2026-09-04 05:04 UTCEPSS rescore
  5. 2026-09-02 14:10 UTCEPSS rescore
  6. 2026-09-01 13:52 UTCEPSS rescore
  7. 2026-09-01 04:36 UTCEPSS rescore
  8. 2026-08-30 19:15 UTCEPSS rescore
  9. 2026-08-30 01:20 UTCEPSS rescore
  10. 2026-08-28 21:39 UTCEPSS rescore
  11. 2026-08-26 14:44 UTCEPSS rescore
  12. 2026-08-25 13:47 UTCEPSS rescore
  13. 2026-08-23 00:17 UTCEPSS rescore
  14. 2026-08-23 00:17 UTCEPSS rescore
  15. 2026-08-21 23:47 UTCEPSS rescore
  16. 2026-08-20 22:53 UTCEPSS rescore
  17. 2026-08-19 17:02 UTCEPSS rescore
  18. 2026-08-18 13:46 UTCEPSS rescore
  19. 2026-08-16 14:54 UTCEPSS rescore
  20. 2026-08-16 02:12 UTCEPSS rescore
  21. 2026-08-15 01:28 UTCEPSS rescore
  22. 2026-08-13 21:58 UTCEPSS rescore
  23. 2026-08-12 13:49 UTCEPSS rescore
  24. 2026-08-11 13:40 UTCEPSS rescore
  25. 2026-08-09 13:44 UTCEPSS rescore
  26. 2026-08-08 16:35 UTCEPSS rescore
  27. 2026-08-07 16:25 UTCEPSS rescore
  28. 2026-08-06 13:45 UTCEPSS rescore
  29. 2026-08-05 19:15 UTCEPSS rescore
  30. 2026-08-05 19:15 UTCEPSS rescore
  31. 2026-08-04 10:36 UTCEPSS rescore
  32. 2026-08-01 04:14 UTCEPSS rescore
  33. 2026-07-30 16:26 UTCEPSS rescore
  34. 2026-07-30 01:29 UTCEPSS rescore
  35. 2026-07-28 15:34 UTCEPSS rescore
  36. 2026-07-28 15:34 UTCEPSS rescore
  37. 2026-07-26 14:53 UTCEPSS rescore
  38. 2026-07-25 14:16 UTCEPSS rescore
  39. 2026-07-24 14:16 UTCEPSS rescore
  40. 2026-07-23 02:30 UTCEG score recompute▲ 0.20
  41. 2026-07-22 23:16 UTCEG score recompute▼ 1.50
  42. 2026-07-22 14:07 UTCEPSS rescore
  43. 2026-07-22 14:07 UTCEPSS rescore
  44. 2026-07-21 15:23 UTCEPSS rescore
  45. 2026-07-20 17:06 UTCEPSS rescore
  46. 2026-07-19 14:30 UTCEPSS rescore
  47. 2026-07-19 14:29 UTCEPSS rescore
  48. 2026-07-18 10:03 UTCEPSS rescore
  49. 2026-07-18 10:03 UTCEPSS rescore
  50. 2026-07-16 17:01 UTCEPSS rescore
  51. 2026-07-15 16:56 UTCEPSS rescore
  52. 2026-07-15 01:59 UTCEPSS rescore
  53. 2026-07-15 01:59 UTCEPSS rescore
  54. 2026-07-13 06:11 UTCEPSS rescore
  55. 2026-07-12 05:45 UTCEPSS rescore
  56. 2026-07-12 05:45 UTCEPSS rescore
  57. 2026-07-11 08:26 UTCEPSS rescore
  58. 2026-07-09 19:08 UTCEPSS rescore
  59. 2026-07-08 15:13 UTCEPSS rescore
  60. 2026-07-06 16:26 UTCEPSS rescore
  61. 2026-07-06 16:26 UTCEPSS rescore
  62. 2026-07-05 02:29 UTCEPSS rescore
  63. 2026-07-01 15:05 UTCEPSS rescore
  64. 2026-06-28 04:55 UTCEPSS rescore
  65. 2026-06-25 13:48 UTCEPSS rescore
  66. 2026-06-25 13:48 UTCEPSS rescore
  67. 2026-06-24 14:04 UTCEPSS rescore
  68. 2026-06-24 14:04 UTCEPSS rescore
  69. 2026-06-23 21:31 UTCEPSS rescore
  70. 2026-06-23 21:31 UTCEPSS rescore
  71. 2026-06-22 14:24 UTCEPSS rescore
  72. 2026-06-22 14:24 UTCEPSS rescore
  73. 2026-06-21 01:58 UTCEPSS rescore
  74. 2026-06-21 01:58 UTCEPSS rescore
  75. 2026-06-19 19:24 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2023/CVE-2023-6021.yaml
    First seen Jan 1, 2023

    Ray API - Local File Inclusion

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-6021?
CVE-2023-6021 is a high vulnerability published on November 16, 2023. LFI in Ray's log API endpoint allows attackers to read any file on the server without authentication. The issue is fixed in version 2.8.1+. Ray maintainers' response can be found here:…
When was CVE-2023-6021 disclosed?
CVE-2023-6021 was first published on November 16, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-6021 actively exploited?
CVE-2023-6021 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-6021?
CVE-2023-6021 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.7 (HIGH).
How do I remediate CVE-2023-6021?
A fix for CVE-2023-6021 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-6021

Explore →

Is Your Infrastructure Affected by CVE-2023-6021?

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

Book a Demo →Browse All CVEs