RHSA-2026:71566HighCVSS 7.1

Red Hat Security Advisory: tesseract security update

Published
September 24, 2026
Last Modified
September 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-73066 →

📋 Description

CVE-2026-73066 — tesseract: Tesseract: Heap out-of-bounds write via crafted .traineddata

🎯 Affected products35

  • Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-0:5.3.4-6.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-0:5.3.4-6.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-0:5.3.4-6.el10_0.1.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-0:5.3.4-6.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debuginfo-0:5.3.4-6.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-debugsource-0:5.3.4-6.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-devel-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-devel-0:5.3.4-6.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-devel-0:5.3.4-6.el10_0.1.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-devel-0:5.3.4-6.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-tools-debuginfo-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • tesseract-tools-debuginfo-0:5.3.4-6.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • tesseract-tools-debuginfo-0:5.3.4-6.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • +5 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: To mitigate this issue, avoid processing `.traineddata` files from untrusted sources with Tesseract. Ensure that only `.traineddata` files from known, reputable origins are used for OCR recognition.

🔗 References (4)