CVE-2026-88387 Integer overflow in n/a
An attacker can cause a denial of service by providing a crafted RAW, TIFF, or DNG file with an invalid NewSubfileType value to LibRaw.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-88387?
CVE-2026-88387 is a medium-severity vulnerability in n/a, published on 24 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
LibRaw 0.22.0 contains an incorrect numeric conversion vulnerability in LibRaw::parse_tiff_ifd() when processing TIFF tag 0x00fe (NewSubfileType). A specially crafted RAW, TIFF, or DNG file can supply an attacker-controlled NewSubfileType value outside the range of a signed int. The parser converts this value and narrows it to int without performing range validation. This out-of-range conversion triggers undefined behavior, resulting in process termination and denial of service.
Weakness: CWE-681
Which versions are affected by CVE-2026-88387?
Linux distribution packages (4)
libraw SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 | All versions | 0.21.1-150600.3.13.1 |
libraw SUSE:Linux Enterprise Module for Package Hub 15 SP7 | All versions | 0.21.1-150600.3.13.1 |
libraw SUSE:Linux Enterprise Workstation Extension 15 SP7 | All versions | 0.21.1-150600.3.13.1 |
libraw openSUSE:Tumbleweed | All versions | 0.22.2-2.1 |
How do I fix CVE-2026-88387?
Upgrade to a fixed version.
Is CVE-2026-88387 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-88387 exists.
Sources
Also known as DEBIAN-CVE-2026-88387, ECHO-7b6e-f313-9dc9, GHSA-6cg8-27q5-77wx, SUSE-SU-2026:4829-1, UBUNTU-CVE-2026-88387, openSUSE-SU-2026:11933-1.