CVE-2026-107705

Name of the Vulnerable Software and Affected Versions Poppler versions 0.42.0 through 26.10.0

Description A stack-based buffer overflow exists in the Decrypt::revision6Hash() function. This occurs when opening PDFs encrypted with AESV3/R6 if a password longer than 127 bytes is provided. Attackers can use applications utilizing the libpoppler, libpoppler-glib, or C++ API to overflow the K1 and E buffers, which may lead to process crashes or memory corruption.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.