# 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.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **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:** Yes
- **Published:** 24 Sep 2026
- **Updated:** 29 Sep 2026
- **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

## 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 (Incorrect Conversion between Numeric Types)

## Which versions are affected by CVE-2026-88387?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `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.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-88387 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-88387 exists.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-88387/ (Markdown: https://insights.sbomify.com/CVE-2026-88387/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-88387
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-88387
- OSV: https://osv.dev/vulnerability/CVE-2026-88387

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-88387/
Summaries are generated and may contain mistakes; the official description above is the record.