RHSA-2026:95085 - Security Advisory

Topic

An update for tesseract is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 10 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64
• Red Hat Enterprise Linux for IBM z Systems 10 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 s390x
• Red Hat Enterprise Linux for Power, little endian 10 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 ppc64le
• Red Hat Enterprise Linux for ARM 64 10 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64
• Red Hat CodeReady Linux Builder for x86_64 10 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 10 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.2 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.2 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.2 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.2 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 s390x
• Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 ppc64le
• Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64
• Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 ppc64le
• Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 s390x

Fixes

• BZ - 2531546 - CVE-2026-88048 tesseract: Tesseract: Heap out-of-bounds write/read leading to information disclosure via crafted data
• BZ - 2531550 - CVE-2026-88047 tesseract: Tesseract: Stack buffer overflow via crafted .traineddata file
• BZ - 2531554 - CVE-2026-88049 tesseract: Tesseract: Heap out-of-bounds write allows arbitrary code execution or denial of service
• BZ - 2531566 - CVE-2026-88051 tesseract: Tesseract: Heap out-of-bounds write via crafted .traineddata model
• BZ - 2531573 - CVE-2026-88053 tesseract: Tesseract: Heap out-of-bounds write leads to heap corruption via crafted data file
• BZ - 2531579 - CVE-2026-88052 tesseract: Tesseract: Heap out-of-bounds write can lead to arbitrary code execution

CVEs

• CVE-2026-88047
• CVE-2026-88048
• CVE-2026-88049
• CVE-2026-88051
• CVE-2026-88052
• CVE-2026-88053

References

• https://access.redhat.com/security/updates/classification/#important