CVE-2026-8358

LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the same change identifier for two different kinds of change. The importer then treated one change object as a different, larger type and wrote past the end of its allocation. In fixed versions records with a duplicate identifier are rejected.

CVSS

No CVSS.

References

Link	Resource
https://www.libreoffice.org/about-us/security/advisories/cve-2026-8358

Configurations

No configuration.

History

15 Jun 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-15 18:16

Updated : 2026-06-15 20:55

NVD link : CVE-2026-8358

Mitre link : CVE-2026-8358

CVE.ORG link : CVE-2026-8358

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

{"id": "CVE-2026-8358", "cveTags": [], "metrics": {"cvssMetricV40": [{"type": "Secondary", "source": "security@documentfoundation.org", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.4, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/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", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-06-15T18:16:37.630", "references": [{"url": "https://www.libreoffice.org/about-us/security/advisories/cve-2026-8358", "source": "security@documentfoundation.org"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@documentfoundation.org", "description": [{"lang": "en", "value": "CWE-787"}, {"lang": "en", "value": "CWE-843"}]}], "descriptions": [{"lang": "en", "value": "LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the same change identifier for two different kinds of change. The importer then treated one change object as a different, larger type and wrote past the end of its allocation. In fixed versions records with a duplicate identifier are rejected."}], "lastModified": "2026-06-15T20:55:48.070", "sourceIdentifier": "security@documentfoundation.org"}

CVE-2026-8358

JSON object

Attach tags to CVE-2026-8358

Attach tags to `CVE-2026-8358`