# CVE-2026-78322: File-roller: file-roller: stack buffer overflow in parse_progress_line for 7z and rar handlers

> A stack buffer overflow in file-roller allows attackers to cause a denial of service by tricking users into opening malicious archives.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 25 Aug 2026
- **Updated:** 27 Aug 2026
- **Also known as:** DEBIAN-CVE-2026-78322, GHSA-qgv9-pfrp-f7x5, OESA-2026-3803, OESA-2026-3804, OESA-2026-3805, OESA-2026-3806, OESA-2026-3903, SUSE-SU-2026:3960-1, SUSE-SU-2026:4007-1, UBUNTU-CVE-2026-78322, openSUSE-SU-2026:21667-1

## What is CVE-2026-78322?

CVE-2026-78322 is a medium-severity memory corruption vulnerability in Red Hat Enterprise Linux 6, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A flaw was found in file-roller. When opening or extracting a malicious 7z or RAR archive containing a file entry with an excessively long path, file-roller's progress-line parsing copies the path into a fixed-size stack buffer using an unbounded string copy. This can trigger a stack buffer overflow and cause file-roller to terminate, resulting in a denial of service. To exploit this flaw, a victim must open or extract the crafted archive using file-roller.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2026-78322?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `file-roller` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 | All versions | 43.1-150600.3.3.1 |
| `file-roller` | SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | All versions | 3.20.3-15.12.1 |
| `file-roller` | openSUSE:Leap 16.0 | All versions | 44.5-bp160.2.1 |

## How do I fix CVE-2026-78322?

Apply the vendor's patch.

## Is CVE-2026-78322 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78322 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-78322 and fix it if it is affected.

What it is: CVE-2026-78322 is a medium-severity memory corruption vulnerability in Red Hat Enterprise Linux 6, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, 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-2026-78322 exists.

Affected product: Red Hat Enterprise Linux 6. 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-2026-78322/ (Markdown: https://insights.sbomify.com/CVE-2026-78322/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-78322
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-78322
- OSV: https://osv.dev/vulnerability/CVE-2026-78322

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-78322/
Summaries are generated and may contain mistakes; the official description above is the record.