CVE-2026-45829

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 12.4%, top 4% 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
Elevated
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 12%CVSS: 10.0Exploit: NoneExposed: 0

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

A pre-authentication, code injection vulnerability in version 1.0.0 or later of the ChromaDB Python project allows an unauthenticated attacker to run arbitrary code on the server by sending a malicious model repository and trust_remote_code set to true in the /api/v2/tenants/{tenant}/databases/{db}/collections endpoint.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
76(Attend)
EG Risk 76/100SSVC: Attend

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
Severity100% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
95.8%
KEV
Not listed

Published

May 18, 2026

Last Modified

July 15, 2026

Advisory Details (5)

Auto-updated Jul 22, 2026
Patch available. Sources: redhat.
generic

ChromaToast Served Pre-Auth

https://www.hiddenlayer.com/research/chromatoast-served-pre-auth
redhat
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45829.json
redhat

2479623 – (CVE-2026-45829) CVE-2026-45829 chromadb: ChromaDB Python Project: Arbitrary code execution via pre-authentication code injection

https://bugzilla.redhat.com/show_bug.cgi?id=2479623
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-45829
generic

[Vulnerability ]: Python Backend Server Side RCE & Python Client SDK RCE · Issue #6717 · chroma-core/chroma · GitHub

https://github.com/chroma-core/chroma/issues/6717

Vendor Advisories for CVE-2026-45829(1)

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
pipchromadb—ghsa

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 rangeFixed inDependents
chromadb1.0.0 ... 1.5.9 (44 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45829?
CVE-2026-45829 is a critical vulnerability published on May 18, 2026. A pre-authentication, code injection vulnerability in version 1.0.0 or later of the ChromaDB Python project allows an unauthenticated attacker to run arbitrary code on the server by sending a malicious model repository and trustremotecode set to true in the…
When was CVE-2026-45829 disclosed?
CVE-2026-45829 was first published in the National Vulnerability Database on May 18, 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-2026-45829 actively exploited?
CVE-2026-45829 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45829?
CVE-2026-45829 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-45829?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45829, 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

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