CVE-2026-24006
Published: 22 January 2026
Summary
CVE-2026-24006 is a high-severity Allocation of Resources Without Limits or Throttling (CWE-770) vulnerability in Lxsmnsyc Seroval. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 8.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
This control implements explicit throttling on session allocation, addressing the weakness of allocating resources without limits.
Plan testing exercises resource allocation limits and throttling during simulated failures, directly addressing weaknesses that allow unbounded resource use.
Contingency plan updates ensure recovery strategies address unbounded resource allocation, making it harder for attackers to exploit lack of throttling to cause prolonged outages.
Provides continuity when unbounded resource allocation at the primary site leads to exhaustion and downtime.
Alternate services allow operations to continue when primary allocation of resources lacks limits or throttling.
Explicit planning of security-related actions requires defining limits, windows, and resource allocations, making allocation without throttling far less likely.
Measures of performance include tracking allocation behavior and throttling effectiveness, reducing the window for resource exhaustion attacks.
Imposes an inactivity-based limit on network resource allocation, throttling the number of concurrently held connections.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct stack overflow DoS via crafted nested input to exposed serialization function matches Application or System Exploitation for availability impact.
NVD Description
Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, serialization of objects with extreme depth can exceed the maximum call stack limit. In version 1.4.1, Seroval introduces a `depthLimit` parameter in serialization/deserialization methods.…
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An error will be thrown if the depth limit is reached.
Deeper analysisAI
CVE-2026-24006 is a denial-of-service vulnerability in the Seroval JavaScript library, which enables stringification of complex JavaScript values beyond the capabilities of JSON.stringify. The issue affects versions 1.4.0 and below, where serializing objects with extreme nesting depth exceeds the maximum call stack limit, leading to a crash. This corresponds to CWE-770 (Allocation of Resources Without Limits or Throttling) and carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Attackers can exploit this vulnerability remotely with low complexity and no privileges or user interaction required. By supplying a maliciously crafted object with deeply nested structures to a Seroval serialization or deserialization function, an attacker triggers a stack overflow, causing the application to terminate or become unresponsive and resulting in high availability impact.
The Seroval security advisory (GHSA-3j22-8qj3-26mx) and associated commit (ce9408ebc87312fcad345a73c172212f2a798060) detail the fix in version 1.4.1, which introduces a configurable `depthLimit` parameter to serialization and deserialization methods. If the depth limit is exceeded, an error is thrown instead of allowing unbounded recursion.
Details
- CWE(s)