{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-2656", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-02-18T06:43:23.403Z", "datePublished": "2026-02-18T14:32:07.335Z", "dateUpdated": "2026-02-18T15:11:04.454Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-02-18T14:32:07.335Z"}, "title": "ChaiScript type_info.hpp bare_equal use after free", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-416", "lang": "en", "description": "Use After Free"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "n/a", "product": "ChaiScript", "versions": [{"version": "6.0", "status": "affected"}, {"version": "6.1.0", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "A flaw has been found in ChaiScript up to 6.1.0. This affects the function chaiscript::Type_Info::bare_equal of the file include/chaiscript/dispatchkit/type_info.hpp. This manipulation causes use after free. The attack requires local access. The attack's complexity is rated as high. The exploitability is reported as difficult. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 2, "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "LOW"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 2.5, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 2.5, "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 1, "vectorString": "AV:L/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-02-18T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-02-18T01:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-02-18T07:48:30.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "Oneafter (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/?id.346454", "name": "VDB-346454 | ChaiScript type_info.hpp bare_equal use after free", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.346454", "name": "VDB-346454 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.752790", "name": "Submit #752790 | ChaiScript develop branch Use After Free", "tags": ["third-party-advisory"]}, {"url": "https://github.com/ChaiScript/ChaiScript/issues/636", "tags": ["issue-tracking"]}, {"url": "https://github.com/ChaiScript/ChaiScript/issues/636#issue-3828333582", "tags": ["exploit", "issue-tracking"]}, {"url": "https://github.com/ChaiScript/ChaiScript/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-18T15:10:55.409203Z", "id": "CVE-2026-2656", "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": "2026-02-18T15:11:04.454Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-2656", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-18T15:10:55.409203Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-18T15:10:59.583Z"}}], "cna": {"title": "ChaiScript type_info.hpp bare_equal use after free", "credits": [{"lang": "en", "type": "reporter", "value": "Oneafter (VulDB User)"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 2, "baseSeverity": "LOW", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 2.5, "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 2.5, "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 1, "vectorString": "AV:L/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}], "affected": [{"vendor": "n/a", "product": "ChaiScript", "versions": [{"status": "affected", "version": "6.0"}, {"status": "affected", "version": "6.1.0"}]}], "timeline": [{"lang": "en", "time": "2026-02-18T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-02-18T01:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-02-18T07:48:30.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/?id.346454", "name": "VDB-346454 | ChaiScript type_info.hpp bare_equal use after free", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.346454", "name": "VDB-346454 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.752790", "name": "Submit #752790 | ChaiScript develop branch Use After Free", "tags": ["third-party-advisory"]}, {"url": "https://github.com/ChaiScript/ChaiScript/issues/636", "tags": ["issue-tracking"]}, {"url": "https://github.com/ChaiScript/ChaiScript/issues/636#issue-3828333582", "tags": ["exploit", "issue-tracking"]}, {"url": "https://github.com/ChaiScript/ChaiScript/", "tags": ["product"]}], "descriptions": [{"lang": "en", "value": "A flaw has been found in ChaiScript up to 6.1.0. This affects the function chaiscript::Type_Info::bare_equal of the file include/chaiscript/dispatchkit/type_info.hpp. This manipulation causes use after free. The attack requires local access. The attack's complexity is rated as high. The exploitability is reported as difficult. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "Use After Free"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "Memory Corruption"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-02-18T14:32:07.335Z"}}}, "cveMetadata": {"cveId": "CVE-2026-2656", "state": "PUBLISHED", "dateUpdated": "2026-02-18T15:11:04.454Z", "dateReserved": "2026-02-18T06:43:23.403Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-02-18T14:32:07.335Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:chaiscript:chaiscript:*:*:*:*:*:*:*:*", "matchCriteriaId": "7C9648DA-18A7-412B-AEE5-903C40744AD3", "versionEndIncluding": "6.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw has been found in ChaiScript up to 6.1.0. This affects the function chaiscript::Type_Info::bare_equal of the file include/chaiscript/dispatchkit/type_info.hpp. This manipulation causes use after free. The attack requires local access. The attack's complexity is rated as high. The exploitability is reported as difficult. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet."}], "id": "CVE-2026-2656", "lastModified": "2026-02-19T17:22:19.880", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 1.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:H/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 1.5, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 2.5, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.0, "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-02-18T15:18:44.743", "references": [{"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://github.com/ChaiScript/ChaiScript/"}, {"source": "cna@vuldb.com", "tags": ["Exploit", "Vendor Advisory", "Issue Tracking"], "url": "https://github.com/ChaiScript/ChaiScript/issues/636"}, {"source": "cna@vuldb.com", "tags": ["Exploit", "Vendor Advisory", "Issue Tracking"], "url": "https://github.com/ChaiScript/ChaiScript/issues/636#issue-3828333582"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?ctiid.346454"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.346454"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.752790"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-416"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"created": "2026-02-19T10:12:00.417761+00:00", "updated": "2026-02-19T10:12:00.417919+00:00", "vendors": ["chaiscript", "chaiscript$PRODUCT$chaiscript"]}