EUVD-2026-77072
GHSA-4h8c-6gfp-w4fg
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Unauthenticated network-reachable DoS with no confidentiality or integrity impact; availability limited to low given serverless resource constraints.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Uncontrolled resource consumption in evanchiu/serverless-todo (versions 1.0.3 and 2.0.0) allows remote unauthenticated attackers to exhaust compute or memory resources by sending crafted payloads to the API Todo Endpoint's saveTodos function. The vulnerability stems from unsanitized processing of the event.body argument in src/index.js without input size or rate limits. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The serverless-todo application must be deployed and its API Todo Endpoint must be publicly reachable over the network. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L) scores 6.9 and reflects straightforward unauthenticated network access with low availability impact and no confidentiality or integrity consequence - consistent with a DoS-only resource exhaustion class. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch identified at time of analysis - the maintainer was notified via GitHub issue (https://github.com/evanchiu/serverless-todo/issues/10) but has not responded. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
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External POC / Exploit Code
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