{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-28461", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-02-27T19:18:14.008Z", "datePublished": "2026-03-19T01:00:46.834Z", "dateUpdated": "2026-06-23T16:14:13.747Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-06-23T16:14:13.747Z" }, "title": "OpenClaw < 2026.3.1 - Unbounded Memory Growth in Zalo Webhook via Query String Key Churn", "descriptions": [ { "lang": "en", "value": "OpenClaw versions prior to 2026.3.1 contain an unbounded memory growth vulnerability in the Zalo webhook endpoint that allows unauthenticated attackers to trigger in-memory key accumulation by varying query strings. Remote attackers can exploit this by sending repeated requests with different query parameters to cause memory pressure, process instability, or out-of-memory conditions that degrade service availability." } ], "tags": [ "x_open-source" ], "datePublic": "2026-03-02T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-770", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE" } ] } ], "affected": [ { "vendor": "OpenClaw", "product": "OpenClaw", "defaultStatus": "unaffected", "packageURL": "pkg:npm/openclaw", "versions": [ { "version": "0", "status": "affected", "versionType": "semver", "lessThan": "2026.3.1" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.3.1" } ] } ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" } }, { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } } ], "references": [ { "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-wr6m-jg37-68xh", "name": "GitHub Security Advisory (GHSA-wr6m-jg37-68xh)", "tags": [ "vendor-advisory" ] }, { "name": "VulnCheck Advisory: OpenClaw < 2026.3.1 - Unbounded Memory Growth in Zalo Webhook via Query String Key Churn", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/openclaw-unbounded-memory-growth-in-zalo-webhook-via-query-string-key-churn" } ], "credits": [ { "lang": "en", "value": "Somet2mes", "type": "reporter" }, { "lang": "en", "value": "Migraine (@migraine-sudo)", "type": "reporter" } ], "x_generator": { "engine": "vulncheck" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-03-19T15:39:40.421333Z", "id": "CVE-2026-28461", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-19T15:39:51.770Z" } } ] } }