CVE-2026-8828

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (26th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
8.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

A lack of authorization validation in version 1.0.0 or later of the ChromaDB Rust project allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection regardless of which tenant they belong to.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

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 (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CVSS v4.0 confidentiality and integrity impact both High). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
26th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CVSS v4.0 confidentiality and integrity impact both High). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CVSS v4.0 confidentiality and integrity impact both High). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 12, 2026

Last Modified

June 12, 2026

Advisory Details (1)

Auto-updated Jun 12, 2026
No fix on record yet.
Web page

HiddenLayer SAI Security Advisory | ChromaDB

https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb-2

Vendor Advisories for CVE-2026-8828(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 10× in last 7d / 30× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 97 of 259 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 162 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 19:15 UTCEG score recompute
  2. 2026-10-11 16:32 UTCEG score recompute
  3. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  4. 2026-10-11 13:49 UTCEG score recompute
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  7. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  10. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  12. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  13. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  14. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  15. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  16. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  17. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 25th percentile
  18. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  19. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  21. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  22. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  23. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  24. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 20th percentile
Show 72 more
  1. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-09-14 03:59 UTCEG score recompute
  3. 2026-09-14 03:59 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  4. 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  5. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  6. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  7. 2026-09-11 09:38 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  13. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  15. 2026-08-30 23:42 UTCEG score recompute
  16. 2026-08-30 23:42 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  17. 2026-08-30 19:18 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  19. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  22. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-08-24 23:49 UTCEG score recompute
  24. 2026-08-24 23:49 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  25. 2026-08-24 14:18 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  26. 2026-08-23 23:21 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  27. 2026-08-23 10:01 UTCEG score recompute
  28. 2026-08-23 10:01 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  29. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  30. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  31. 2026-08-21 23:33 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  32. 2026-08-21 10:32 UTCEG score recompute
  33. 2026-08-21 10:32 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  34. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  35. 2026-08-20 21:39 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  36. 2026-08-20 08:46 UTCEG score recompute
  37. 2026-08-20 08:46 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  38. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  39. 2026-08-19 13:44 UTCEG score recompute
  40. 2026-08-19 13:44 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  41. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  42. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  43. 2026-08-17 11:50 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  44. 2026-08-16 22:50 UTCEG score recompute
  45. 2026-08-16 22:50 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  46. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  47. 2026-08-16 04:44 UTCEG score recompute
  48. 2026-08-16 04:44 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  49. 2026-08-16 02:15 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  50. 2026-08-15 15:51 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  51. 2026-08-15 02:53 UTCEG score recompute
  52. 2026-08-15 02:53 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  53. 2026-08-15 01:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  54. 2026-08-14 14:00 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  55. 2026-08-14 01:07 UTCEG score recompute
  56. 2026-08-14 01:07 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  57. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  58. 2026-08-13 12:14 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  59. 2026-08-12 23:20 UTCEG score recompute
  60. 2026-08-12 23:20 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  61. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  62. 2026-08-12 10:28 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  63. 2026-08-11 21:35 UTCEG score recompute
  64. 2026-08-11 21:35 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  65. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  66. 2026-08-11 08:42 UTCEG score recompute
  67. 2026-08-11 08:42 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  68. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  69. 2026-08-10 19:50 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  70. 2026-08-10 03:03 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH
  71. 2026-08-09 14:10 UTCEG score recompute
  72. 2026-08-09 14:10 UTCGHSA enrichmentGHSA-843m-rfxf-6v2g · GitHub severity HIGH

Frequently asked(5)

What is CVE-2026-8828?
CVE-2026-8828 is a high-severity vulnerability; its CVE record was published on June 12, 2026. A lack of authorization validation in version 1.0.0 or later of the ChromaDB Rust project allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection regardless of which tenant they belong to.
When was the CVE record for CVE-2026-8828 published?
The CVE record for CVE-2026-8828 was published on June 12, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 12, 2026; the record at its source may have been updated since.
Is CVE-2026-8828 actively exploited?
CVE-2026-8828 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-8828?
CVE-2026-8828 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-8828?
No fix for CVE-2026-8828 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-8828 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-8828

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