CVE Explorer

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7a1b1676bc3aeaad00671b63da2126486dd87a34ec9429c3a8b5a2944d0317fc

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e2725d7f9a83aa894ddc9a22e528fd49bb5d93ca24e4f1a767440f6b1ee99067 · sha256:77141c172caf2e1f… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-843","description":"CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e2725d7f9a83aa894ddc9a22e528fd49bb5d93ca24e4f1a767440f6b1ee99067 · sha256:77141c172caf2e1f… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"defaultStatus":"unknown","product":"LibreOffice","vendor":"The Document Foundation","versions":[{"lessThan":"< 25.8.7","status":"affected","version":"25.8","versionType":"26.2 series"},{"lessThan":"< 26.2.4","status":"affected","version":"26.2","versionType":"26.2 series"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:e2725d7f9a83aa894ddc9a22e528fd49bb5d93ca24e4f1a767440f6b1ee99067 · sha256:77141c172caf2e1f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":5.4,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidential…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:e2725d7f9a83aa894ddc9a22e528fd49bb5d93ca24e4f1a767440f6b1ee99067 · sha256:77141c172caf2e1f… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e2725d7f9a83aa894ddc9a22e528fd49bb5d93ca24e4f1a767440f6b1ee99067 · sha256:77141c172caf2e1f… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-843","description":"CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e2725d7f9a83aa894ddc9a22e528fd49bb5d93ca24e4f1a767440f6b1ee99067 · sha256:77141c172caf2e1f… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://www.libreoffice.org/about-us/security/advisories/cve-2026-8358"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e2725d7f9a83aa894ddc9a22e528fd49bb5d93ca24e4f1a767440f6b1ee99067 · sha256:77141c172caf2e1f… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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