Description

A vulnerability was determined in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. This impacts an unknown function of the component Save Account Job. This manipulation causes race condition. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is said to be difficult. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.0",
  "pubDate": "2026-09-13T10:16:55.540Z",
  "pubdate": "2026-09-13T10:16:55.540Z",
  "executiveSummary": "A race condition vulnerability has been identified within the Save Account Job component of the vvbbnn00 WARP-Clash-API, affecting versions up to c7bf2360073959861219b422e51ae86411051b46.\nThe vulnerability allows remote attackers to potentially exploit asynchronous execution flows due to inadequate synchronization mechanisms within the background job processing logic.\nThe complexity of this attack is rated as high, with exploitability described as difficult, suggesting that successful exploitation requires precise timing or specific environmental conditions.\nPublicly disclosed exploit code exists, increasing the risk for environments still utilizing this legacy, unsupported component.\nAs the product utilizes a rolling release model and the maintainer has ceased support, there is no official patch available to remediate this flaw.\nThe primary risk involves the potential for unauthorized state manipulation or data inconsistencies within the application's account management subsystem.",
  "technicalDetails": "The vulnerability manifests within the Save Account Job component of the WARP-Clash-API, stemming from a race condition during the handling of concurrent state-altering operations.\nThe root cause is a lack of proper atomic synchronization or locking primitives when the application performs file I/O or database write operations triggered by the background job. In a multi-threaded or asynchronous execution environment, multiple instances of the Save Account Job may attempt to access or modify shared resources (such as configuration files or account tokens) simultaneously without adequate mutual exclusion.\nThe attack vector is remote, allowing an adversary to influence the system state by rapidly firing requests that trigger the Save Account Job. Because the exploitability is classified as high complexity and difficult, the attacker must likely synchronize their requests to coincide with the brief time-of-check to time-of-use (TOCTOU) window existing within the job's execution cycle.\nThe execution flow involves the attacker initiating the Save Account Job through the API endpoint. During this process, the application thread reads the existing account configuration, performs validation or transformation logic, and subsequently writes the result back to storage. If a second, concurrent request interweaves its own read/write operations during this interval, the internal state of the account data becomes indeterminate.\nPost-exploitation impact is primarily defined by the corruption of account data, potential privilege escalation if security tokens are improperly overwritten, or a denial-of-service condition if the race results in a locked or invalid configuration state that crashes the API process. Given that the product is no longer supported, the application remains perpetually exposed to this flaw, and the integrity of the data handled by the Save Account Job cannot be guaranteed.\nThe vulnerable code persists in all releases up to commit c7bf2360073959861219b422e51ae86411051b46. Because the maintainer is unresponsive and the project is effectively abandoned, no security patches are expected for this component, making it imperative to isolate the service from untrusted network segments."
}