CVE-2026-88052

tesseract-devel: A commercial quality OCR engine originally developed at HP between 1985 and 1995

CVE-2026-88052 is fixed in 19 products on 1 platform, first by libtesseract5 5.5.0-1ubuntu0.1~esm1, released September 10, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.4
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

A commercial quality OCR engine originally developed at HP between 1985 and 1995. In 1995, this engine was among the top 3 evaluated by UNLV. It was open-sourced by HP and UNLV in 2005. Security Fix(es): * tesseract: Tesseract: Heap out-of-bounds write/read leading to information disclosure via crafted data (CVE-2026-88048) * tesseract: Tesseract: Stack buffer overflow via crafted .traineddata file (CVE-2026-88047) * tesseract: Tesseract: Heap out-of-bounds write allows arbitrary code execution or denial of service (CVE-2026-88049) * tesseract: Tesseract: Heap out-of-bounds write via crafted .traineddata model (CVE-2026-88051) * tesseract: Tesseract: Heap out-of-bounds write leads to heap corruption via crafted data file (CVE-2026-88053) * tesseract: Tesseract: Heap out-of-bounds write can lead to arbitrary code execution (CVE-2026-88052) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
libtesseract4 · Ubuntu 18.04.6 LTS (bionic) 4.00~git2288-10f4998a-2ubuntu0.1~esm1 libtesseract4 4.00~git2288-10f4998a-2ubuntu0.1~esm1 Oct 7, 2026
libtesseract4 · Ubuntu 20.04 LTS (focal) 4.1.1-2ubuntu0.1~esm1 libtesseract4 4.1.1-2ubuntu0.1~esm1 Oct 7, 2026
libtesseract4 · Ubuntu 22.04.1 LTS (jammy) 4.1.1-2.1ubuntu0.1~esm1 libtesseract4 4.1.1-2.1ubuntu0.1~esm1 Oct 7, 2026
libtesseract5 · Ubuntu 24.04.5 LTS (noble) 5.3.4-1ubuntu0.1~esm1 libtesseract5 5.3.4-1ubuntu0.1~esm1 Oct 7, 2026
libtesseract5 · Ubuntu 26.04.1 LTS (resolute) 5.5.0-1ubuntu0.1~esm1 libtesseract5 5.5.0-1ubuntu0.1~esm1 Sep 10, 2026
mingw32-tesseract · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
mingw32-tesseract-debuginfo · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
mingw32-tesseract-tools · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
mingw64-tesseract · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
mingw64-tesseract-debuginfo · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
mingw64-tesseract-tools · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract · RHEL 10 5.3.4-11.el10_2 RHSA-2026:95085 Sep 10, 2026
tesseract · almalinux 10 5.3.4-11.el10_2 ALSA-2026:95085 Nov 7, 2026
tesseract · almalinux 8 4.1.1-7.el8_10 ALSA-2026:95725 Nov 7, 2026
tesseract · ol 10 0:5.3.4-11.el10_2 ELSA-2026-95085 Nov 7, 2026
tesseract · ol 8 0:4.1.1-7.el8_10 ELSA-2026-95725 Nov 7, 2026
tesseract · ol 9 0:4.1.1-11.el9_8 ELSA-2026-95086 Nov 7, 2026
tesseract · rocky 10 0:5.3.4-11.el10_2 RLSA-2026:95085 Nov 7, 2026
tesseract · rocky 8 0:4.1.1-7.el8_10 RLSA-2026:95725 Nov 8, 2026
tesseract · rocky 9 0:4.1.1-11.el9_8 RLSA-2026:95086 Nov 7, 2026
tesseract-common · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract-debuginfo · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract-debugsource · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract-devel · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract-devel · almalinux 10 5.3.4-11.el10_2 ALSA-2026:95085 Nov 7, 2026
tesseract-devel · almalinux 8 4.1.1-7.el8_10 ALSA-2026:95725 Nov 7, 2026
tesseract-devel · almalinux 9 4.1.1-11.el9_8 ALSA-2026:95086 Nov 7, 2026
tesseract-devel · ol 10 0:5.3.4-11.el10_2 ELSA-2026-95085 Nov 7, 2026
tesseract-devel · ol 8 0:4.1.1-7.el8_10 ELSA-2026-95725 Nov 7, 2026
tesseract-devel · ol 9 0:4.1.1-11.el9_8 ELSA-2026-95086 Nov 7, 2026
tesseract-libs · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract-libs-debuginfo · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract-ocr · Ubuntu 18.04.6 LTS (bionic) 4.00~git2288-10f4998a-2ubuntu0.1~esm1 tesseract-ocr 4.00~git2288-10f4998a-2ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr · Ubuntu 20.04 LTS (focal) 4.1.1-2ubuntu0.1~esm1 tesseract-ocr 4.1.1-2ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr · Ubuntu 22.04.1 LTS (jammy) 4.1.1-2.1ubuntu0.1~esm1 tesseract-ocr 4.1.1-2.1ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr · Ubuntu 24.04.5 LTS (noble) 5.3.4-1ubuntu0.1~esm1 tesseract-ocr 5.3.4-1ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr · Ubuntu 26.04.1 LTS (resolute) 5.5.0-1ubuntu0.1~esm1 tesseract-ocr 5.5.0-1ubuntu0.1~esm1 Sep 10, 2026
tesseract-ocr · opensuse-leap 16.0 5.5.3-bp160.1.1 OPENSUSE-SU-2026:21957-1 Sep 24, 2026
tesseract-ocr-all · Ubuntu 18.04.6 LTS (bionic) 4.00~git2288-10f4998a-2ubuntu0.1~esm1 tesseract-ocr-all 4.00~git2288-10f4998a-2ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr-all · Ubuntu 20.04 LTS (focal) 4.1.1-2ubuntu0.1~esm1 tesseract-ocr-all 4.1.1-2ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr-all · Ubuntu 22.04.1 LTS (jammy) 4.1.1-2.1ubuntu0.1~esm1 tesseract-ocr-all 4.1.1-2.1ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr-all · Ubuntu 24.04.5 LTS (noble) 5.3.4-1ubuntu0.1~esm1 tesseract-ocr-all 5.3.4-1ubuntu0.1~esm1 Oct 7, 2026
tesseract-ocr-all · Ubuntu 26.04.1 LTS (resolute) 5.5.0-1ubuntu0.1~esm1 tesseract-ocr-all 5.5.0-1ubuntu0.1~esm1 Sep 10, 2026
tesseract-tools · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026
tesseract-tools-debuginfo · Fedora 43 5.5.3-2.fc43 FEDORA-2026-4585ABA520 Sep 21, 2026

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