CVE-2026-30623

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-16. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

LiteLLM 1.18.10 contains a remote code execution vulnerability in its MCP server creation functionality. The application allows users to add MCP servers via a JSON configuration specifying arbitrary command and args values. LiteLLM executes these values on the host without validation, enabling attackers to run arbitrary operating system commands. Successful exploitation may result in remote code execution with the privileges of the LiteLLM process.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Track)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
92%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 16, 2026

Advisory Details (3)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic

MCP STDIO Command Injection: Full Vulnerability Advisory

https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/
generic

GitHub - BerriAI/litellm: The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM] · GitHub

https://github.com/BerriAI/litellm
generic

Security Update: CVE-2026-30623 — Command Injection via Anthropic's MCP SDK | liteLLM

https://docs.litellm.ai/blog/mcp-stdio-command-injection-april-2026

Vendor Advisories for CVE-2026-30623(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 37× in last 7d / 212× 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 278 total refreshes for this CVE.

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

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/2026/CVE-2026-30623.yaml
    First seen Jan 1, 2026

    LiteLLM 1.18.10 - Command Injection

    Open source ↗

Frequently asked(5)

What is CVE-2026-30623?
CVE-2026-30623 is a critical vulnerability published on July 15, 2026. LiteLLM 1.18.10 contains a remote code execution vulnerability in its MCP server creation functionality. The application allows users to add MCP servers via a JSON configuration specifying arbitrary command and args values. LiteLLM executes these values on the host without validation, enabling…
When was CVE-2026-30623 disclosed?
CVE-2026-30623 was first published in the National Vulnerability Database on July 15, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-30623 actively exploited?
CVE-2026-30623 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 8.3% of all scored CVEs.
What is the CVSS score of CVE-2026-30623?
CVE-2026-30623 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-30623?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-30623, 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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