CVE-2026-63276 Stack buffer overflow in CFF to Type 1 font conversion

LibreOffice converts CFF fonts to Type 1 when it subsets a font, which happens when a document is exported to PDF, and CFF fonts may be embedded in documents. A stack buffer overflow existed in that conversion. The converted operators were written into a fixed size buffer with no check that they...

EUVD-2026-84356

LibreOffice converts CFF fonts to Type 1 when it subsets a font, which happens when a document is exported to PDF, and CFF fonts may be embedded in documents. A stack buffer overflow existed in that conversion. The converted operators were written into a fixed size buffer with no check that they...

CVE-2026-63274

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the...

CVE-2026-63274 Heap buffer overflow in PDF import stream handling

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the...

CVE-2026-63274 Heap buffer overflow in PDF import stream handling

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the...

EUVD-2026-84354

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the...

CVE-2026-63274

LibreOffice Draw is affected by a heap buffer overflow in its PDF import stream handling . When importing a stream object, the declared length from the object's dictionary was not validated against the number of bytes actually present, causing the copy operation to read and write past the end of ...

CVE-2026-63273

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length large...

CVE-2026-63273 Heap buffer overflow in PDF import encryption handling

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length large...

CVE-2026-63273 Heap buffer overflow in PDF import encryption handling

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length large...

CVE-2026-63273

LibreOffice Draw is vulnerable to a heap buffer overflow when importing encrypted PDF documents. The root cause lies in the PDF import's encryption handling: the decryption key length was read directly from the document's own encryption dictionary and used to fill a fixed-size key buffer without ...

EUVD-2026-84353

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length large...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python-reportlab (UTSA-2023-002178)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-002178 advisory. Reportlab up to v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file. Tenable has extracted the preceding description block directly...

Linux Distros Unpatched Vulnerability : CVE-2026-54633

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PoDoFo is a C++17 PDF manipulation library. From version 1.0.0 until 1.1.1, processing a crafted PDF with an Indexed color-space image can cause a heap...

CVE-2026-63274: Out-of-bounds Write

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the...

PT-2026-96705

Name of the Vulnerable Software and Affected Versions LibreOffice affected versions not specified Description A stack buffer overflow occurs during the conversion of CFF fonts to Type 1 fonts, a process that takes place when a document is exported to PDF and CFF fonts are embedded. The issue aris...

PT-2026-96702

Name of the Vulnerable Software and Affected Versions LibreOffice Draw affected versions not specified Description A heap buffer overflow occurs during the import of encrypted PDF documents. The issue arises because the software uses the decryption key length specified in the document's encryptio...

CVE-2026-63273: Out-of-bounds Write

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length large...

CVE-2026-63276: Out-of-bounds Write

LibreOffice converts CFF fonts to Type 1 when it subsets a font, which happens when a document is exported to PDF, and CFF fonts may be embedded in documents. A stack buffer overflow existed in that conversion. The converted operators were written into a fixed size buffer with no check that they...

PT-2026-96706

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description URLs can be constructed to expand environment variable or INI file values, allowing potentially sensitive information to be exfiltrated to a remote server when a...