PT-2026-58534

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow exists in Microsoft Office Excel, which could allow an unauthorized attacker to execute arbitrary code locally. A heap-based buffer overflow occurs...

Security Updates for Microsoft Excel Products (July 2026)

The Microsoft Excel Products are missing a security update. They are, therefore, affected by multiple vulnerabilities: - Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. CVE-2026-55054 - Heap-based buffer overflow in Microsoft...

PYSEC-2026-2744 Open WebUI has stored XSS in Excel file preview

Summary Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. Details The...

PT-2026-63656

Name of the Vulnerable Software and Affected Versions PhpSpreadsheet affected versions not specified Description The OLE reader in PhpSpreadsheet follows sector chains from XLS/OLE metadata without detecting cycles or enforcing a maximum chain length. A malformed file can set the small-block depo...

CVE-2026-46672

Actual is a local-first personal finance app. Prior to 26.6.0, @actual-app/cli ships a hand-rolled CSV serializer in packages/cli/src/output.ts used whenever the global --format csv option is passed, whose escapeCsv helper only handles RFC 4180 delimiter, quote, and newline escaping and does not...

EUVD-2026-42079

Actual is a local-first personal finance app. Prior to 26.6.0, @actual-app/cli ships a hand-rolled CSV serializer in packages/cli/src/output.ts used whenever the global --format csv option is passed, whose escapeCsv helper only handles RFC 4180 delimiter, quote, and newline escaping and does not...

PT-2026-56159

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, Excelize parses shared-string cell values with strconv.Atoi and checks only the upper bound before indexing the shared string slice, allowing an XLSX file containing a shared-string cell with ...

PT-2026-56158

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows and GetRows does not enforce the TotalRows limit on the row r attribute, allowing a small XLSX file with a row number above 1048576 and no cell...

PT-2026-56151

Name of the Vulnerable Software and Affected Versions Excelize versions prior to 2.11.0 Description The checkSheet function in github.com/xuri/excelize/v2 fails to validate the XML attribute value before using it as the length argument for a slice allocation in makexlsxRow, row. This lack of...

PYSEC-2026-331 excel-mcp-server has a Path Traversal issue

Summary A path traversal vulnerability exists in excel-mcp-server versions up to and including 0.1.7. When running in SSE or Streamable-HTTP transport mode the documented way to use this server remotely, an unauthenticated attacker on the network can read, write, and overwrite arbitrary files on...

GHSA-7GH7-258J-4MPQ @actual-app/cli `--format csv` Output Vulnerable to CSV Formula Injection via Custom `escapeCsv` Helper

Summary @actual-app/cli ships a hand-rolled CSV serializer in packages/cli/src/output.ts used whenever the global --format csv option is passed whose escapeCsv helper only handles RFC 4180 delimiter/quote/newline escaping. It does not neutralize the standard CSV formula-injection prefixes =, +, -...

CVE-2026-12862

Untrusted user data was passed verbatim to Excel exports for administrators. This allowed formula injection which can be used to compromise the environment of the user loading the file or other data in the file...

CVE-2026-12862 XLSX formula injection in exports

Untrusted user data was passed verbatim to Excel exports for administrators. This allowed formula injection which can be used to compromise the environment of the user loading the file or other data in the file...

CVE-2026-12862

The CVE-2026-12862 entry documents a formula-injection risk in XLSX exports where untrusted user data is passed directly to Excel exports for administrators. Root cause: untrusted data used in the export path enables Excel formulas to be interpreted when the file is opened, potentially compromisi...

CVE-2026-12862

Untrusted user data was passed verbatim to Excel exports for administrators. This allowed formula injection which can be used to compromise the environment of the user loading the file or other data in the file...

EUVD-2026-38220

Untrusted user data was passed verbatim to Excel exports for administrators. This allowed formula injection which can be used to compromise the environment of the user loading the file or other data in the file...

PT-2026-51455

Name of the Vulnerable Software and Affected Versions Actual versions prior to 26.6.0 Description Actual is a local-first personal finance tool that fails to neutralize formula-trigger characters when exporting data to CSV. The functions exportToCSV and exportQueryToCSV in...

PT-2026-51447

Name of the Vulnerable Software and Affected Versions @actual-app/cli versions prior to 26.6.0 Description The @actual-app/cli tool contains a CSV serialization issue in the escapeCsv function within packages/cli/src/output.ts. When the --format csv option is used, the serializer only handles...

Security Updates for Microsoft Office Products (June 2026) (macOS)

The version of Microsoft Office for Mac installed on the remote host is affected by multiple vulnerabilities as referenced in the june-16-2026 advisory. - Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. CVE-2026-44819, CVE-2026-44824,...

Security Updates for Microsoft Excel Products C2R (June 2026)

The Microsoft Excel Products are missing security updates. It is, therefore, affected by multiple vulnerabilities: - Integer underflow wrap or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally. CVE-2026-44817, CVE-2026-44818, CVE-2026-44820,...