{"id":"CVE-2026-107705","published":"2026-10-08T20:17:35.300","lastModified":"2026-10-14T17:18:17.953","description":"Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attackers controlling the password to overwrite stack memory when opening AESV3/R6 encrypted PDFs. Attackers can supply a password longer than 127 bytes through applications using the libpoppler, libpoppler-glib or C++ API to overflow the K1 and E buffers, crashing the process or corrupting memory.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","cwes":["CWE-121"],"vendors":[],"products":[],"references":[{"url":"https://gitlab.freedesktop.org/poppler/poppler","tags":[]},{"url":"https://gitlab.freedesktop.org/poppler/poppler/-/blob/poppler-26.10.0/poppler/Decrypt.cc#L1767","tags":[]},{"url":"https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2398","tags":[]},{"url":"https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1814","tags":[]},{"url":"https://www.vulncheck.com/advisories/poppler-0.42.0-through-26.10.0-stack-buffer-overflow-via-decrypt-revision6hash","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}