CVE-2026-2258

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This patch is called c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd. It is advisable to implement a patch to correct this issue."}, {"lang": "es", "value": "Se ha encontrado un fallo en aardappel lobster hasta 2025.4. Afectada por esta vulnerabilidad es la funci\u00f3n WaveFunctionCollapse en la biblioteca dev/src/lobster/wfc.h. Ejecutar una manipulaci\u00f3n puede llevar a corrupci\u00f3n de memoria. El ataque solo puede ser ejecutado localmente. El exploit ha sido publicado y puede ser usado. Este parche se llama c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd. Es aconsejable implementar un parche para corregir este problema."}], "id": "CVE-2026-2258", "lastModified": "2026-06-17T10:30:38.947", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 1.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.1, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-2258", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-10T16:35:38.260675Z", "version": "2.0.3"}}]}, "published": "2026-02-10T00:16:06.523", "references": [{"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://github.com/aardappel/lobster/"}, {"source": "cna@vuldb.com", "tags": ["Patch"], "url": "https://github.com/aardappel/lobster/commit/c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd"}, {"source": "cna@vuldb.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/aardappel/lobster/issues/395"}, {"source": "cna@vuldb.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/aardappel/lobster/issues/395#issuecomment-3849012938"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://github.com/oneafter/0204/blob/main/lob1/repro.lobster"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.345005"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.345005"}, {"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.753167"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "cna@vuldb.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "calver", "value": "2025.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "calver", "value": "2025.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "calver", "value": "2025.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "calver", "value": "2025.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "calver", "value": "2025.4"}}], "product": "lobster", "vendor": "aardappel"}], "analysis": {"en": {"generated_at": "2026-04-18T12:56:04.827561+00:00", "value": {"mitigation_remediation": ["Upgrade aardappel lobster to a version that includes commit c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd or later. ", "If an immediate update cannot be applied, deploy the application in a sandbox or container, enforce least privilege, and limit untrusted input to the WaveFunctionCollapse function. ", "When building or executing lobster, enable compiler runtime protections such as stack smashing protection, address sanitizer, or hardware features like ASLR and DEP to reduce exploitation risk."], "summary": {"action": "Patch", "impact": "Local Memory Corruption"}, "threat_synthesis": {"affected_systems": "The issue affects the aardappel lobster product, specifically any version of the library prior to the 2025.4 release. The affected component is the file dev/src/lobster/wfc.h within the lobster source tree.", "description_and_impact": "The vulnerability exists in the WaveFunctionCollapse function of the aardappel lobster library, where improper bounds handling can corrupt memory. This flaw allows an attacker with local access to overwrite memory addresses, potentially leading to crashes, data corruption, or in some scenarios, local privilege escalation. The weakness is identified as a buffer over-read and an out\u2011of\u2011bounds write (CWE\u2011119 and CWE\u2011787).", "risk_and_exploitability": "With a CVSS score of 4.8 the severity is moderate and the EPSS score is below 1%, indicating a very low likelihood of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog, further suggesting limited threat. The attack vector is inferred to be local only, as the exploit requires execution of the vulnerable function within the local process. An attacker who can run code on the system may trigger memory corruption through crafted input, leading to denial of service or potential escalation if the corrupted memory can be leveraged to execute arbitrary code."}}}}, "created": "2026-02-10T11:34:47.795628+00:00", "updated": "2026-04-18T13:00:08.760084+00:00", "vendors": ["aardappel", "aardappel$PRODUCT$lobster"]}