CVE-2026-45831

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-12. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The SimpleRBACAuthorizationProvider authorization provider in versions 0.5.0 or later of the ChromaDB Python project evaluates whether a user holds a given permission but never checks which tenant, database, or collection that permission applies to allowing users to perform cross tenant actions.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

June 12, 2026

Last Modified

June 16, 2026

Advisory Details (1)

Auto-updated Jun 12, 2026
No patch confirmed yet.
generic

HiddenLayer SAI Security Advisory | ChromaDB

https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb-3

Vendor Advisories for CVE-2026-45831(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 70× 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 130 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45831?
CVE-2026-45831 is a high vulnerability published on June 12, 2026. The SimpleRBACAuthorizationProvider authorization provider in versions 0.5.0 or later of the ChromaDB Python project evaluates whether a user holds a given permission but never checks which tenant, database, or collection that permission applies to allowing users to perform cross tenant actions.
When was CVE-2026-45831 disclosed?
CVE-2026-45831 was first published in the National Vulnerability Database on June 12, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45831 actively exploited?
CVE-2026-45831 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 85.2% of all scored CVEs.
What is the CVSS score of CVE-2026-45831?
CVE-2026-45831 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-45831?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45831, 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.

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