CVE-2026-90582

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-13. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0

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

A vulnerability was identified in evanchiu serverless-todo 1.0.3/2.0.0. Impacted is the function saveTodos of the file src/index.js of the component API Todo Endpoint. Such manipulation of the argument event.body leads to resource consumption. The attack can be executed remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
55(Attend)
EG Risk 55/100SSVC: 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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

September 13, 2026

Last Modified

September 15, 2026

Advisory Details (2)

Auto-updated Sep 13, 2026
No patch confirmed yet.
generic

GitHub - evanchiu/serverless-todo: React TodoMVC with a Serverless backend · GitHub

https://github.com/evanchiu/serverless-todo/
generic

Unauthenticated resource consumption via unbounded `/api/todos` JSON body · Issue #10 · evanchiu/serverless-todo · GitHub

https://github.com/evanchiu/serverless-todo/issues/10

Vendor Advisories for CVE-2026-90582(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 25× 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. 2026-09-19 16:12 UTCEG score recompute
  2. 2026-09-19 16:12 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 16:10 UTCEG score recompute
  5. 2026-09-18 16:10 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-17 15:36 UTCGHSA enrichment
  8. 2026-09-16 15:34 UTCEG score recompute
  9. 2026-09-16 15:34 UTCGHSA enrichment
  10. 2026-09-16 14:09 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 15:32 UTCEG score recompute
  13. 2026-09-15 15:32 UTCGHSA enrichment
  14. 2026-09-15 15:31 UTCNVD updateCVSS v4 → 5.5
  15. 2026-09-15 14:18 UTCEG score recompute
  16. 2026-09-15 14:18 UTCGHSA enrichment
  17. 2026-09-15 14:18 UTCMITRE cvelistV5CVSS v4 → 6.9
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 21:06 UTCGHSA enrichment
  20. 2026-09-14 20:27 UTCEG score recompute
  21. 2026-09-14 20:27 UTCGHSA enrichment
  22. 2026-09-13 20:25 UTCEG score recompute
  23. 2026-09-13 20:24 UTCNVD updateCVSS v4 → 5.5
  24. 2026-09-13 19:54 UTCEG score recompute
  25. 2026-09-13 19:54 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90582?
CVE-2026-90582 is a medium vulnerability published on September 13, 2026. A vulnerability was identified in evanchiu serverless-todo 1.0.3/2.0.0. Impacted is the function saveTodos of the file src/index.js of the component API Todo Endpoint. Such manipulation of the argument event.body leads to resource consumption. The attack can be executed remotely. The exploit is…
When was CVE-2026-90582 disclosed?
CVE-2026-90582 was first published in the National Vulnerability Database on September 13, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90582 actively exploited?
CVE-2026-90582 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.4% of all scored CVEs.
What is the CVSS score of CVE-2026-90582?
CVE-2026-90582 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-90582?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90582, 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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