{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82677", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-08-30T16:36:08.965Z", "datePublished": "2026-08-31T10:00:15.053Z", "dateUpdated": "2026-08-31T15:09:07.620Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-08-31T10:00:15.053Z"}, "title": "valkey-io valkey Module Timer module.c moduleTimerHandler double free", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-415", "lang": "en", "description": "Double Free"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "valkey-io", "product": "valkey", "versions": [{"version": "9.1.0", "status": "affected"}], "cpes": ["cpe:2.3:a:valkey-io:valkey:*:*:*:*:*:*:*:*"], "modules": ["Module Timer Subsystem"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: b349fe2821e3998534b1454c1b64a478daf8c6b7. To fix this issue, it is recommended to deploy a patch."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 4.8, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 2.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C", "baseSeverity": "LOW"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 2.4, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C", "baseSeverity": "LOW"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 3.3, "vectorString": "AV:N/AC:L/Au:M/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}], "timeline": [{"time": "2026-08-30T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-08-30T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-08-30T18:41:14.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "VULL (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/397172", "name": "VDB-397172 | valkey-io valkey Module Timer module.c moduleTimerHandler double free", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/397172/cti", "name": "VDB-397172 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-82677", "name": "CVE-2026-82677 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/893959", "name": "Submit #893959 | Valkey Project Valkey 9.1.0 Double Free", "tags": ["third-party-advisory"]}, {"url": "https://github.com/valkey-io/valkey/issues/4200", "tags": ["issue-tracking"]}, {"url": "https://github.com/valkey-io/valkey/pull/4211", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/user-attachments/files/30118801/PoC.zip", "tags": ["exploit"]}, {"url": "https://github.com/valkey-io/valkey/commit/b349fe2821e3998534b1454c1b64a478daf8c6b7", "tags": ["patch"]}, {"url": "https://github.com/valkey-io/valkey/", "tags": ["product"]}], "tags": ["x_open-source"], "x_generator": ["VulDB PVTS v202608"]}, "adp": [{"references": [{"url": "https://vuldb.com/submit/893959", "tags": ["exploit"]}, {"url": "https://github.com/valkey-io/valkey/issues/4200", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-31T15:08:56.209775Z", "id": "CVE-2026-82677", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2026-08-31T15:09:07.620Z"}}]}}

{}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:valkey-io:valkey:*:*:*:*:*:*:*:*"], "modules": ["Module Timer Subsystem"], "product": "valkey", "vendor": "valkey-io", "versions": [{"status": "affected", "version": "9.1.0"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: b349fe2821e3998534b1454c1b64a478daf8c6b7. To fix this issue, it is recommended to deploy a patch."}], "id": "CVE-2026-82677", "lastModified": "2026-08-31T10:16:50.780", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "MULTIPLE", "availabilityImpact": "PARTIAL", "baseScore": 3.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:M/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 6.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.4, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 1.9, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-08-31T10:16:50.780", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/user-attachments/files/30118801/PoC.zip"}, {"source": "cna@vuldb.com", "url": "https://github.com/valkey-io/valkey/"}, {"source": "cna@vuldb.com", "url": "https://github.com/valkey-io/valkey/commit/b349fe2821e3998534b1454c1b64a478daf8c6b7"}, {"source": "cna@vuldb.com", "url": "https://github.com/valkey-io/valkey/issues/4200"}, {"source": "cna@vuldb.com", "url": "https://github.com/valkey-io/valkey/pull/4211"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-82677"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/893959"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/397172"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/397172/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-415"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "9.1.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "valkey", "source": "cna", "vendor": "valkey-io"}, "product": "valkey", "vendor": "valkey-io"}], "created": "2026-08-31T11:18:32.227123+00:00", "updated": "2026-08-31T11:30:05.420241+00:00", "vendors": ["valkey-io", "valkey-io$PRODUCT$valkey"]}