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
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 12%CVSS: 10.0Exploit: Elevated riskExposed: 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 PROB
12%
EPSS %ILE
96%
KEV
Not listed

Published

May 18, 2026

Last Modified

July 15, 2026

Advisory Details (5)

Auto-updated Aug 26, 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-2026-45829 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

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 6× in last 7d / 95× 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 294 total refreshes for this CVE.

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

Related CVEs(same product + 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 12% probability of exploitation in the next 30 days, which ranks it in the top 4.1% of all scored CVEs.
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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45829

Explore →

Is Your Infrastructure Affected by CVE-2026-45829?

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

Start Free Scan →Browse All CVEs