# CVE-2026-2957: qinming99 dst-admin File BackupController.java deleteBackup denial of service

> Remote attackers can cause denial of service in dst-admin via the deleteBackup function, requiring permissions.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-58v6-hqx7-g3f3

## What is CVE-2026-2957?

CVE-2026-2957 is a medium-severity denial of service vulnerability in qinming99 dst-admin, published on 22 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A weakness has been identified in qinming99 dst-admin up to 1.5.0. This impacts the function deleteBackup of the file src/main/java/com/tugos/dst/admin/controller/BackupController.java of the component File Handler. This manipulation causes denial of service. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2026-2957?

It affects 1 product.


Products: Dst-Admin Project Dst-Admin.

## How do I fix CVE-2026-2957?

No fix has been published for CVE-2026-2957 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2957 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2957 exists.

## Other vulnerabilities in qinming99 dst-admin

- [CVE-2023-43270](https://insights.sbomify.com/CVE-2023-43270/): Code injection in n/a (critical 9.8)
- [CVE-2021-44586](https://insights.sbomify.com/CVE-2021-44586/): Path traversal in n/a (high 7.5)
- [CVE-2023-0646](https://insights.sbomify.com/CVE-2023-0646/): dst-admin cavesConsole command injection (medium 6.3)
- [CVE-2023-0647](https://insights.sbomify.com/CVE-2023-0647/): dst-admin kickPlayer command injection (medium 6.3)
- [CVE-2023-0648](https://insights.sbomify.com/CVE-2023-0648/): dst-admin masterConsole command injection (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2957 and fix it if it is affected.

What it is: CVE-2026-2957 is a medium-severity denial of service vulnerability in qinming99 dst-admin, published on 22 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2957 exists.

Affected product: qinming99 dst-admin. 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-2026-2957/ (Markdown: https://insights.sbomify.com/CVE-2026-2957/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2957
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2957
- OSV: https://osv.dev/vulnerability/CVE-2026-2957

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-2957/
Summaries are generated and may contain mistakes; the official description above is the record.