{"id":"CVE-2026-107705","revision":"0e933afa4b3249cea15cb7512ea4dcb5","records":[{"revision":"0e933afa4b3249cea15cb7512ea4dcb5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107705","aliases":[],"title":"Poppler 0.42.0 through 26.10.0 Stack Buffer Overflow via Decrypt::revision6Hash()","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.","state":0,"publishedAt":"2026-10-08T19:51:12.884+00:00","modifiedAt":"2026-10-14T16:05:29.301+00:00","affected":[{"ecosystem":"Vendor product","name":"poppler","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"freedesktop\",\n                    \"product\": \"poppler\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0.42.0\",\n                            \"lessThanOrEqual\": \"26.10.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","score":8.3,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1814","https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2398","https://gitlab.freedesktop.org/poppler/poppler/-/blob/poppler-26.10.0/poppler/Decrypt.cc#L1767","https://gitlab.freedesktop.org/poppler/poppler","https://www.vulncheck.com/advisories/poppler-0.42.0-through-26.10.0-stack-buffer-overflow-via-decrypt-revision6hash"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107705","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107705","identifiers":["CVE-2026-107705"]},"retained":false,"historicalAffected":[]}],"coverage":[]}