CVE-2026-107705
Fixed in a distro release EPSS <1%CVSS 6.5
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.
Products: freedesktop poppler
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | poppler | no fix |
| Debian 13 | poppler | no fix |
| Debian 14 | poppler | no fix |
| Red Hat hummingbird 1 | poppler | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-cpp | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-cpp | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-cpp-devel | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-cpp-devel | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-devel | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-devel | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-glib | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-glib | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-glib-devel | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-glib-devel | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-glib-doc | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-glib-doc | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-qt6 | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-qt6 | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-qt6-devel | 0:26.08.0-1.4.hum1 |
| Red Hat hummingbird 1 | poppler-qt6-devel | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-utils | 0:26.08.0-1.3.hum1 |
| Red Hat hummingbird 1 | poppler-utils | 0:26.08.0-1.4.hum1 |
| Ubuntu 22.04 LTS | poppler | 22.02.0-2ubuntu0.15 |
| Ubuntu 24.04 LTS | poppler | 24.02.0-1ubuntu9.11 |
| Ubuntu 26.04 LTS | poppler | 26.01.0-2ubuntu0.3 |
| Ubuntu 26.10 | poppler | 26.07.0-2ubuntu1.1 |
| Ubuntu Pro 16.04 LTS | poppler | no fix |
| Ubuntu Pro 18.04 LTS | poppler | no fix |
| Ubuntu Pro 20.04 LTS | poppler | no fix |
| openSUSE Tumbleweed | poppler | 26.10.0-1.1 |