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Threatist priority CRITICAL 0 HIGH 0 MEDIUM 0 LOW 2

Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

Fix status Fixed 2 Partial 0 Will not fix 0 Deferred 0 No fix listed 0

Impact type Code execution 0 Privilege escalation 0 Security bypass 0 Information disclosure 0 Tampering 0 Denial of service 1 Spoofing 0 Cross-site scripting 0 SQL injection 0

Attack vector Network 2 Adjacent network 0 Local 0 Physical 0

Requirements No authentication 1 No user interaction 2

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Weakness (CWE) CWE-1321 Improperly Controlled Modification of Object Prototype Attributes 1 CWE-770 Allocation of Resources Without Limits or Throttling 1

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Release: sveltejs devalue 5.6.3 × Clear all filters

TI-2026-86711 CVE-2026-123569 · GHSA-hf27-79c5-2rv5

Resource exhaustion in devalue npm package via sparse arrays

Priority LOW 38

The devalue package for npm before 5.6.3 can consume excessive CPU and memory when serializing sparse arrays with uneval or stringify.

CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00343 · Published 2026-11-08 · Fixed in 5.6.3 CWE-770

TI-2026-86710 CVE-2026-123568 · GHSA-7g65-3hpp-6gg5

Prototype pollution in Sveltejs devalue via uneval output

Priority LOW 11

Sveltejs devalue before 5.6.3 contains a prototype pollution vulnerability that allows attackers to alter object prototypes by supplying untrusted data to uneval.

CVSS 4.0LOW 2.1· Network · High privileges · No interaction · EPSS 0.00202 · Published 2026-11-08 · Fixed in 5.6.3 CWE-1321

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