High [CVE-2026-63274] heap buffer overflow in PDF import stream handling
This high-severity Red Hat Linux advisory covers CVE-2026-63274; related products: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
heap buffer overflow in PDF import stream handling. Red Hat rates this moderate (CVSS 7.3).
Weakness: CWE-120.
Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more.
Affected products named by the advisory: Red Hat package: libreoffice.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 7 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 7 days ago·verify at source
Mitigation checklist
- Do not import PDF documents from unknown or untrusted sources with LibreOffice Draw.
Official advisory · high-confidence parse· fetched 7 days ago·verify at source
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