# CVE-2026-70378: imagecli - Negative carve Ratio Bypasses Bounds Check and Crashes Process via Reachable Panic

> Attackers can crash the application by providing a negative carve ratio, bypassing bounds checks and triggering a panic in the image processing pipeline.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Aug 2026
- **Updated:** 10 Aug 2026
- **Also known as:** GHSA-6gxc-w5rp-4g3p

## What is CVE-2026-70378?

CVE-2026-70378 is a high-severity denial of service vulnerability in theotherphil imagecli, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

imagecli's pipeline operation (Carve::apply in src/image_ops.rs) only asserts , never validating that the ratio is positive. A negative ratio (e.g. -5) causes the computed target width to saturate to 0 via Rust's defined float-to-uint cast, which is then passed to imageproc::seam_carving::shrink_width — a function that panics when given a width below 2, crashing the process.

Weakness: CWE-1284 (Improper Validation of Specified Quantity in Input)

## Which versions are affected by CVE-2026-70378?


## How do I fix CVE-2026-70378?

No fix has been published for CVE-2026-70378 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-70378 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-70378 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-70378 and fix it if it is affected.

What it is: CVE-2026-70378 is a high-severity denial of service vulnerability in theotherphil imagecli, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-70378 exists.

Affected product: theotherphil imagecli. 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-2026-70378/ (Markdown: https://insights.sbomify.com/CVE-2026-70378/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-70378
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-70378
- OSV: https://osv.dev/vulnerability/CVE-2026-70378

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-70378/
Summaries are generated and may contain mistakes; the official description above is the record.