Authenticated wallet inflation via unlocked concurrent transfers
Published Mar 27, 2026 · Updated Mar 27, 2026
Race condition in AVideo 26.0 and earlier allows remote authenticated users to duplicate wallet balance through concurrent transfers. The YPTWallet transferBalance() method checks a stale sender balance in PHP, then updates sender and recipient rows without a transaction or row lock. Multiple authenticated sessions, reusable per-session captchas, and precisely timed requests let every transfer pass while only one debit persists, inflating wallet funds.
Summary
What happened
Race condition in AVideo 26.0 and earlier allows remote authenticated users to duplicate wallet balance through concurrent transfers. The YPTWallet transferBalance() method checks a stale sender balance in PHP, then updates sender and recipient rows without a transaction or row lock. Multiple authenticated sessions, reusable per-session captchas, and precisely timed requests let every transfer pass while only one debit persists, inflating wallet funds.
The record
- CVE
- CVE-2026-34368
- Published
- Mar 27, 2026
- Updated
- Mar 27, 2026
- Vendor
- World Wide Broadcast Network
- Product
- AVideo
- Classifications
- CWE-362
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 27, 2026CVE publishedPublication date reported by the CVE source.
- Mar 27, 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=<= 26.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- GHSA-h54m-c522-h6qr concurrent-transfer proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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