RHSA-2026:26567 - Security Advisory

Topic

An update for libexif is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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

The libexif packages provide a library for extracting extra information from image files.

Security Fix(es):

• libexif: libexif: Information disclosure and crashes via integer overflow in Nikon MakerNote handling (CVE-2026-40385)
• libexif: libexif: Denial of Service and information disclosure via integer underflow in MakerNote decoding (CVE-2026-40386)

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 Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 2457687 - CVE-2026-40385 libexif: libexif: Information disclosure and crashes via integer overflow in Nikon MakerNote handling
• BZ - 2457689 - CVE-2026-40386 libexif: libexif: Denial of Service and information disclosure via integer underflow in MakerNote decoding

CVEs

• CVE-2026-40385
• CVE-2026-40386

References

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