CVE-2026-123562 (GCVE-0-2026-123562)
Vulnerability from cvelistv5 – Published: 2026-11-08 01:38 – Updated: 2026-11-09 13:54
VLAI
EPSS
VEX
Title
Devalue 5.8.0 before 5.9.3 Denial of Service via stringifyAsync Unhandled Rejection
Summary
devalue (sveltejs/devalue) 5.8.0 before 5.9.3 contains an unhandled promise rejection in stringifyAsync: when serializing multiple promises, a later promise rejecting before an earlier one settles leaves an internal rejection unhandled, even if the caller catches the returned promise. An attacker able to influence the timing or failure of serialized asynchronous values can terminate the Node.js process.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 13:53 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | vendor-advisory |
| https://www.vulncheck.com/advisories/devalue-5.8.… | third-party-advisory |
Impacted products
Date Public
2026-09-18 00:00
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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