# CVE-2026-107705: libpoppler-cpp0v5: Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attacke... CVE-2026-107705 is fixed in 13 products on 1 platform, first by gir1.2-poppler-0.18 22.02.0-2ubuntu0.15, released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-107705 - Priority: Routine - CVSS: n/a (Medium) - EPSS: 0.0032 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 8, 2026 ## 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. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | gir1.2-poppler-0.18 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.15 | [gir1.2-poppler-0.18 22.02.0-2ubuntu0.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-poppler-0.18-22.02.0-2ubuntu0.15.md) | Oct 24, 2026 | | Linux | gir1.2-poppler-0.18 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.11 | [gir1.2-poppler-0.18 24.02.0-1ubuntu9.11](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-poppler-0.18-24.02.0-1ubuntu9.11.md) | Oct 24, 2026 | | Linux | gir1.2-poppler-0.18 Ubuntu 26.04.1 LTS (resolute) | 26.01.0-2ubuntu0.3 | [gir1.2-poppler-0.18 26.01.0-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gir1.2-poppler-0.18-26.01.0-2ubuntu0.3.md) | Nov 7, 2026 | | Linux | libpoppler-cpp0t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.11 | [libpoppler-cpp0t64 24.02.0-1ubuntu9.11](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-cpp0t64-24.02.0-1ubuntu9.11.md) | Oct 24, 2026 | | Linux | libpoppler-cpp0v5 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.15 | [libpoppler-cpp0v5 22.02.0-2ubuntu0.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler-cpp0v5-22.02.0-2ubuntu0.15.md) | Oct 24, 2026 | | Linux | libpoppler-cpp3 Ubuntu 26.04.1 LTS (resolute) | 26.01.0-2ubuntu0.3 | [libpoppler-cpp3 26.01.0-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libpoppler-cpp3-26.01.0-2ubuntu0.3.md) | Nov 7, 2026 | | Linux | libpoppler-glib8 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.15 | [libpoppler-glib8 22.02.0-2ubuntu0.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler-glib8-22.02.0-2ubuntu0.15.md) | Oct 24, 2026 | | Linux | libpoppler-glib8t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.11 | [libpoppler-glib8t64 24.02.0-1ubuntu9.11](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-glib8t64-24.02.0-1ubuntu9.11.md) | Oct 24, 2026 | | Linux | libpoppler-glib8t64 Ubuntu 26.04.1 LTS (resolute) | 26.01.0-2ubuntu0.3 | [libpoppler-glib8t64 26.01.0-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libpoppler-glib8t64-26.01.0-2ubuntu0.3.md) | Nov 7, 2026 | | Linux | libpoppler-qt5-1 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.15 | [libpoppler-qt5-1 22.02.0-2ubuntu0.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler-qt5-1-22.02.0-2ubuntu0.15.md) | Oct 24, 2026 | | Linux | libpoppler-qt5-1t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.11 | [libpoppler-qt5-1t64 24.02.0-1ubuntu9.11](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-qt5-1t64-24.02.0-1ubuntu9.11.md) | Oct 24, 2026 | | Linux | libpoppler-qt5-1t64 Ubuntu 26.04.1 LTS (resolute) | 26.01.0-2ubuntu0.3 | [libpoppler-qt5-1t64 26.01.0-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libpoppler-qt5-1t64-26.01.0-2ubuntu0.3.md) | Nov 7, 2026 | | Linux | libpoppler-qt6-3t64 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.11 | [libpoppler-qt6-3t64 24.02.0-1ubuntu9.11](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler-qt6-3t64-24.02.0-1ubuntu9.11.md) | Oct 24, 2026 | | Linux | libpoppler-qt6-3t64 Ubuntu 26.04.1 LTS (resolute) | 26.01.0-2ubuntu0.3 | [libpoppler-qt6-3t64 26.01.0-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libpoppler-qt6-3t64-26.01.0-2ubuntu0.3.md) | Nov 7, 2026 | | Linux | libpoppler118 Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.15 | [libpoppler118 22.02.0-2ubuntu0.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpoppler118-22.02.0-2ubuntu0.15.md) | Oct 24, 2026 | | Linux | libpoppler134 Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.11 | [libpoppler134 24.02.0-1ubuntu9.11](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpoppler134-24.02.0-1ubuntu9.11.md) | Oct 24, 2026 | | Linux | libpoppler156 Ubuntu 26.04.1 LTS (resolute) | 26.01.0-2ubuntu0.3 | [libpoppler156 26.01.0-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libpoppler156-26.01.0-2ubuntu0.3.md) | Nov 7, 2026 | | Linux | poppler-utils Ubuntu 22.04.1 LTS (jammy) | 22.02.0-2ubuntu0.15 | [poppler-utils 22.02.0-2ubuntu0.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-poppler-utils-22.02.0-2ubuntu0.15.md) | Oct 24, 2026 | | Linux | poppler-utils Ubuntu 24.04.5 LTS (noble) | 24.02.0-1ubuntu9.11 | [poppler-utils 24.02.0-1ubuntu9.11](https://patchblox.com/security/data/fix/linux/ubuntu-noble-poppler-utils-24.02.0-1ubuntu9.11.md) | Oct 24, 2026 | | Linux | poppler-utils Ubuntu 26.04.1 LTS (resolute) | 26.01.0-2ubuntu0.3 | [poppler-utils 26.01.0-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-poppler-utils-26.01.0-2ubuntu0.3.md) | Nov 7, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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