Service interruption via unbounded backup deletion loop
Published Feb 22, 2026 · Updated Feb 22, 2026
Improper resource release in dst-admin 1.0 through 1.5.0 allows remote authenticated users to interrupt service via backup deletion requests. BackupController.deleteBackup accepts an attacker-sized JSON array and synchronously calls backupService.deleteBackup for every supplied filename without bounding the list. Any authenticated account can reach the endpoint; the public record reports denial of service but does not identify whether exhaustion causes a hang or crash.
Summary
What happened
Improper resource release in dst-admin 1.0 through 1.5.0 allows remote authenticated users to interrupt service via backup deletion requests. BackupController.deleteBackup accepts an attacker-sized JSON array and synchronously calls backupService.deleteBackup for every supplied filename without bounding the list. Any authenticated account can reach the endpoint; the public record reports denial of service but does not identify whether exhaustion causes a hang or crash.
The record
- CVE
- CVE-2026-2957
- Published
- Feb 22, 2026
- Updated
- Feb 22, 2026
- Vendor
- qinming99
- Product
- dst-admin
- Classifications
- CWE-404, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 22, 2026CVE publishedPublication date reported by the CVE source.
- Feb 22, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0
- Affected versionversion=1.1
- Affected versionversion=1.2
- Affected versionversion=1.3
- Affected versionversion=1.4
- Affected versionversion=1.5.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Feishu proof-of-concept documentproof of concept · unverified
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Technologies
Your stack
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Your stack
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