CVE-2026-90919

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-14. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 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: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.loads(). Attackers can reach the Config Server port and send a malicious serialized payload with a __reduce__ method to execute arbitrary code with Config Server process privileges.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
75(Attend)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
62%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 14, 2026

Advisory Details (4)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

[BUG]Unauthenticated Code Execution via Unsafe Pickle Deserialization in LightLLM Config Server `/visual_register` · Issue #1563 · ModelTC/LightLLM · GitHub

https://github.com/ModelTC/LightLLM/issues/1563
generic

LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Config Server Pickle Deserialization | Advisories | VulnCheck

https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-config-server-pickle-deserialization
generic

GitHub - ModelTC/LightLLM: LightLLM is a Python-based LLM (Large Language Model) inference and serving framework, notable for its lightweight design, easy scalability, and high-speed performance. · GitHub

https://github.com/ModelTC/lightllm
generic

LightLLM/lightllm/server/config_server/api_http.py at v1.2.0 · ModelTC/LightLLM · GitHub

https://github.com/ModelTC/LightLLM/blob/v1.2.0/lightllm/server/config_server/api_http.py#L79-L86

Vendor Advisories for CVE-2026-90919(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 50× in last 7d / 50× 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.

  1. 2026-09-20 15:21 UTCGHSA enrichment
  2. 2026-09-20 11:09 UTCGHSA enrichment
  3. 2026-09-20 06:59 UTCGHSA enrichment
  4. 2026-09-20 02:31 UTCGHSA enrichment
  5. 2026-09-19 22:20 UTCGHSA enrichment
  6. 2026-09-19 18:10 UTCEG score recompute
  7. 2026-09-19 18:10 UTCGHSA enrichment
  8. 2026-09-19 13:59 UTCGHSA enrichment
  9. 2026-09-19 09:48 UTCGHSA enrichment
  10. 2026-09-19 05:37 UTCGHSA enrichment
  11. 2026-09-19 01:27 UTCGHSA enrichment
  12. 2026-09-18 21:16 UTCEG score recompute
  13. 2026-09-18 21:16 UTCGHSA enrichment
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-18 16:33 UTCGHSA enrichment
  16. 2026-09-18 12:22 UTCGHSA enrichment
  17. 2026-09-18 08:12 UTCGHSA enrichment
  18. 2026-09-18 04:02 UTCGHSA enrichment
  19. 2026-09-17 23:51 UTCGHSA enrichment
  20. 2026-09-17 19:33 UTCEG score recompute
  21. 2026-09-17 19:33 UTCGHSA enrichment
  22. 2026-09-17 19:32 UTCEPSS rescore
  23. 2026-09-17 15:04 UTCGHSA enrichment
  24. 2026-09-17 10:54 UTCGHSA enrichment
  25. 2026-09-17 06:43 UTCGHSA enrichment
Show 25 more
  1. 2026-09-17 02:33 UTCGHSA enrichment
  2. 2026-09-16 22:20 UTCGHSA enrichment
  3. 2026-09-16 18:02 UTCEG score recompute
  4. 2026-09-16 18:02 UTCGHSA enrichment
  5. 2026-09-16 14:09 UTCEPSS rescore
  6. 2026-09-16 13:49 UTCGHSA enrichment
  7. 2026-09-16 09:19 UTCEG score recompute
  8. 2026-09-16 09:18 UTCGHSA enrichment
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 05:08 UTCGHSA enrichment
  11. 2026-09-16 00:58 UTCGHSA enrichment
  12. 2026-09-15 20:47 UTCGHSA enrichment
  13. 2026-09-15 16:22 UTCGHSA enrichment
  14. 2026-09-15 12:12 UTCGHSA enrichment
  15. 2026-09-15 08:01 UTCGHSA enrichment
  16. 2026-09-15 03:51 UTCGHSA enrichment
  17. 2026-09-14 23:41 UTCGHSA enrichment
  18. 2026-09-14 19:31 UTCGHSA enrichment
  19. 2026-09-14 15:21 UTCEG score recompute
  20. 2026-09-14 15:21 UTCGHSA enrichment
  21. 2026-09-14 14:40 UTCEG score recompute
  22. 2026-09-14 14:40 UTCGHSA enrichment
  23. 2026-09-14 12:26 UTCEG score recompute
  24. 2026-09-14 11:45 UTCEG score recompute
  25. 2026-09-14 11:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90919?
CVE-2026-90919 is a critical vulnerability published on September 14, 2026. LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.loads(). Attackers can reach the Config Server port and send a malicious serialized payload with a…
When was CVE-2026-90919 disclosed?
CVE-2026-90919 was first published in the National Vulnerability Database on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90919 actively exploited?
CVE-2026-90919 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 38.3% of all scored CVEs.
What is the CVSS score of CVE-2026-90919?
CVE-2026-90919 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-90919?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90919, 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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