# CVE-2026-14454: Imager versions before 1.033 for Perl treat unsigned EXIF IFD entry counts as signed

> An attacker can cause a denial of service by crafting an image with malicious EXIF data that triggers a memory allocation failure in the Imager Perl library.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Jul 2026
- **Updated:** 9 Jul 2026
- **Also known as:** DEBIAN-CVE-2026-14454, GHSA-j48m-64vj-6rm9, UBUNTU-CVE-2026-14454

## What is CVE-2026-14454?

CVE-2026-14454 is a critical vulnerability in TONYC Imager, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Imager versions before 1.033 for Perl treat unsigned EXIF IFD entry counts as signed.

Imager mishandled large EXIF IFD entry count values, treating them as negative numbers.  This could lead to an attempt to allocate a block nearly the size of the address space, which fails and kills the process.

An attacker could craft an image with EXIF data that terminates a worker process.

Weakness: CWE-789 (Memory Allocation with Excessive Size Value), CWE-196 (Unsigned to Signed Conversion Error)

## Which versions are affected by CVE-2026-14454?

It affects 1 product.


Products: Tonycoz Imager.

## How do I fix CVE-2026-14454?

Upgrade to a fixed version.

## Is CVE-2026-14454 being exploited?

There is no known exploitation of CVE-2026-14454 in the wild and no public exploit code.

## Other vulnerabilities in TONYC Imager

- [CVE-2026-102504](https://insights.sbomify.com/CVE-2026-102504/): Denial of service in tonycoz:imager (high 7.5)
- [CVE-2026-102505](https://insights.sbomify.com/CVE-2026-102505/): Memory corruption in tonycoz:imager (medium 6.3)
- [CVE-2024-53901](https://insights.sbomify.com/CVE-2024-53901/): Memory corruption in n/a (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-14454 and fix it if it is affected.

What it is: CVE-2026-14454 is a critical vulnerability in TONYC Imager, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-14454 in the wild and no public exploit code.

Affected product: TONYC Imager. 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-2026-14454/ (Markdown: https://insights.sbomify.com/CVE-2026-14454/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-14454
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-14454
- OSV: https://osv.dev/vulnerability/CVE-2026-14454

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-14454/
Summaries are generated and may contain mistakes; the official description above is the record.