{"id":"UBUNTU-CVE-2026-107705","details":"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.","modified":"2026-10-14T03:22:50.473330884Z","published":"2026-10-13T00:00:00Z","upstream":["CVE-2026-107705"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-107705"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-107705"},{"type":"REPORT","url":"https://gitlab.freedesktop.org/poppler/poppler"},{"type":"REPORT","url":"https://gitlab.freedesktop.org/poppler/poppler/-/blob/poppler-26.10.0/poppler/Decrypt.cc#L1767"},{"type":"REPORT","url":"https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2398"},{"type":"REPORT","url":"https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1814"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/poppler-0.42.0-through-26.10.0-stack-buffer-overflow-via-decrypt-revision6hash"}],"affected":[{"package":{"name":"poppler","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/poppler?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.33.0-0ubuntu3","0.37.0-0ubuntu1","0.38.0-0ubuntu1","0.41.0-0ubuntu1","0.41.0-0ubuntu1.1","0.41.0-0ubuntu1.2","0.41.0-0ubuntu1.3","0.41.0-0ubuntu1.4","0.41.0-0ubuntu1.5","0.41.0-0ubuntu1.6","0.41.0-0ubuntu1.7","0.41.0-0ubuntu1.8","0.41.0-0ubuntu1.9","0.41.0-0ubuntu1.10","0.41.0-0ubuntu1.11","0.41.0-0ubuntu1.12","0.41.0-0ubuntu1.13","0.41.0-0ubuntu1.14","0.41.0-0ubuntu1.15","0.41.0-0ubuntu1.16","0.41.0-0ubuntu1.16+esm1","0.41.0-0ubuntu1.16+esm2","0.41.0-0ubuntu1.16+esm3","0.41.0-0ubuntu1.16+esm4","0.41.0-0ubuntu1.16+esm5","0.41.0-0ubuntu1.16+esm6","0.41.0-0ubuntu1.16+esm7","0.41.0-0ubuntu1.16+esm8"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-poppler-0.18","binary_version":"0.41.0-0ubuntu1.16+esm8"},{"binary_name":"libpoppler-cpp0","binary_version":"0.41.0-0ubuntu1.16+esm8"},{"binary_version":"0.41.0-0ubuntu1.16+esm8","binary_name":"libpoppler-glib8"},{"binary_name":"libpoppler-qt4-4","binary_version":"0.41.0-0ubuntu1.16+esm8"},{"binary_version":"0.41.0-0ubuntu1.16+esm8","binary_name":"libpoppler-qt5-1"},{"binary_name":"libpoppler58","binary_version":"0.41.0-0ubuntu1.16+esm8"},{"binary_name":"poppler-utils","binary_version":"0.41.0-0ubuntu1.16+esm8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107705.json"}},{"package":{"name":"poppler","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/poppler?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.57.0-2ubuntu4","0.57.0-2ubuntu5","0.62.0-1ubuntu1","0.62.0-2ubuntu1","0.62.0-2ubuntu2","0.62.0-2ubuntu2.1","0.62.0-2ubuntu2.2","0.62.0-2ubuntu2.4","0.62.0-2ubuntu2.5","0.62.0-2ubuntu2.6","0.62.0-2ubuntu2.7","0.62.0-2ubuntu2.8","0.62.0-2ubuntu2.9","0.62.0-2ubuntu2.10","0.62.0-2ubuntu2.11","0.62.0-2ubuntu2.12","0.62.0-2ubuntu2.13","0.62.0-2ubuntu2.14","0.62.0-2ubuntu2.14+esm1","0.62.0-2ubuntu2.14+esm2","0.62.0-2ubuntu2.14+esm3","0.62.0-2ubuntu2.14+esm4","0.62.0-2ubuntu2.14+esm5","0.62.0-2ubuntu2.14+esm6","0.62.0-2ubuntu2.14+esm7","0.62.0-2ubuntu2.14+esm8"],"ecosystem_specific":{"binaries":[{"binary_version":"0.62.0-2ubuntu2.14+esm8","binary_name":"gir1.2-poppler-0.18"},{"binary_name":"libpoppler-cpp0v5","binary_version":"0.62.0-2ubuntu2.14+esm8"},{"binary_name":"libpoppler-glib8","binary_version":"0.62.0-2ubuntu2.14+esm8"},{"binary_version":"0.62.0-2ubuntu2.14+esm8","binary_name":"libpoppler-qt5-1"},{"binary_name":"libpoppler73","binary_version":"0.62.0-2ubuntu2.14+esm8"},{"binary_name":"poppler-utils","binary_version":"0.62.0-2ubuntu2.14+esm8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107705.json"}},{"package":{"name":"poppler","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/poppler?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.80.0-0ubuntu1","0.80.0-0ubuntu3","0.80.0-0ubuntu4","0.80.0-0ubuntu5","0.85.0-1ubuntu1","0.85.0-1ubuntu3","0.86.1-0ubuntu1","0.86.1-0ubuntu1.1","0.86.1-0ubuntu1.2","0.86.1-0ubuntu1.3","0.86.1-0ubuntu1.4","0.86.1-0ubuntu1.5","0.86.1-0ubuntu1.6","0.86.1-0ubuntu1.7","0.86.1-0ubuntu1.7+esm1","0.86.1-0ubuntu1.7+esm2","0.86.1-0ubuntu1.7+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.86.1-0ubuntu1.7+esm3","binary_name":"gir1.2-poppler-0.18"},{"binary_version":"0.86.1-0ubuntu1.7+esm3","binary_name":"libpoppler-cpp0v5"},{"binary_version":"0.86.1-0ubuntu1.7+esm3","binary_name":"libpoppler-glib8"},{"binary_name":"libpoppler-qt5-1","binary_version":"0.86.1-0ubuntu1.7+esm3"},{"binary_name":"libpoppler97","binary_version":"0.86.1-0ubuntu1.7+esm3"},{"binary_name":"poppler-utils","binary_version":"0.86.1-0ubuntu1.7+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107705.json"}},{"package":{"name":"poppler","ecosystem":"Ubuntu:22.04:LTS",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