CVE-2026-2887

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The exploit has been disclosed publicly and may be used. Upgrading to version 2026.1 will fix this issue. The name of the patch is 8ba49f98ccfc9734ef352146806433a41d9f9aa6. It is advisable to upgrade the affected component."}, {"lang": "es", "value": "Se ha detectado una vulnerabilidad de seguridad en aardappel lobster hasta 2025.4. Esta afecta a la funci\u00f3n lobster::TypeName de la biblioteca dev/src/lobster/idents.h. Su manipulaci\u00f3n conduce a recursi\u00f3n incontrolada. El ataque solo puede ser realizado desde un entorno local. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado. La actualizaci\u00f3n de la versi\u00f3n 2026.1 soluciona este problema. El nombre del parche es 8ba49f98ccfc9734ef352146806433a41d9f9aa6. Es aconsejable actualizar el componente afectado."}], "id": "CVE-2026-2887", "lastModified": "2026-06-17T10:31:58.380", "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-2026-2887", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-23T19:30:16.551890Z", "version": "2.0.3"}}]}, "published": "2026-02-21T21:16:11.420", "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/8ba49f98ccfc9734ef352146806433a41d9f9aa6"}, {"source": "cna@vuldb.com", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://github.com/aardappel/lobster/issues/397"}, {"source": "cna@vuldb.com", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://github.com/aardappel/lobster/issues/397#issuecomment-3849015088"}, {"source": "cna@vuldb.com", "tags": ["Release Notes"], "url": "https://github.com/aardappel/lobster/releases/tag/v2026.1"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory"], "url": "https://github.com/oneafter/0204/blob/main/lob3/repro.lobster"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.347181"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.347181"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.755026"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-404"}, {"lang": "en", "value": "CWE-674"}], "source": "cna@vuldb.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-674"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2025.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2025.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2025.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2025.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2025.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "2026.1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "lobster", "source": "cna", "vendor": "aardappel"}, "product": "lobster", "vendor": "aardappel"}], "analysis": {"en": {"generated_at": "2026-04-17T16:40:34.270652+00:00", "value": {"mitigation_remediation": ["Replace the component with the patched version 2026.1 supplied by the aardappel project.", "If immediate upgrade is not feasible, identify and remove or limit calls to the lobster::TypeName function in local scripts or services, preventing the recursion path from executing.", "Continuously monitor local logs for stack overflows or abnormal memory consumption, and apply the next security release as it becomes available."], "summary": {"action": "Immediate Patch", "impact": "Denial of Service via uncontrolled recursion in local environment"}, "threat_synthesis": {"affected_systems": "The vulnerability affects versions of the aardappel lobster component up to and including 2025.4. Users deploying the offending code module from the aardappel:lobster product should consider them compromised until they upgrade past the 2025.4 release.", "description_and_impact": "A security flaw in the lobster library, specifically the lobster::TypeName routine in idents.h, triggers uncontrolled recursion when manipulated with crafted input. This causes a stack exhaustion cycle, effectively halting the component and leading to a denial\u2011of\u2011service condition for processes that invoke the function. The weakness is a classic case of resource exhaustion (CWE\u2011674) and corrupted resource handling (CWE\u2011404).", "risk_and_exploitability": "The issue receives a CVSS base score of 4.8, indicating a moderate severity. The EPSS estimate is less than 1\u202f%, suggesting that real\u2011world exploitation is unlikely, and the bug is not listed in the CISA KEV catalog. Nonetheless, the exploit can only be executed from a local host, meaning an attacker must already have local access; in such a scenario, a successful trigger would abruptly terminate the process, impairing local services. The public disclosure and availability of a patch mitigate the threat, but no widely\u2011adopted workaround exists yet."}}}}, "created": "2026-02-23T14:29:57.766187+00:00", "updated": "2026-04-17T16:45:15.830682+00:00", "vendors": ["aardappel", "aardappel$PRODUCT$lobster"]}