Bug 2430109 (CVE-2026-22775)

Summary: CVE-2026-22775 devalue: devalue: Denial of Service due to improper input validation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: lball, ngough, veshanka
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in devalue, a JavaScript library used for serializing values. A remote attacker could exploit this vulnerability by providing specially crafted input to the `devalue.parse` function. This improper input validation, specifically during the ArrayBuffer hydration process, can cause the application to consume excessive CPU time and memory. This ultimately leads to a denial of service (DoS), making the affected system unavailable to legitimate users.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2430327, 2430328    
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Description OSIDB Bzimport 2026-01-15 20:01:15 UTC 
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.1.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the ArrayBuffer hydration expecting base64 encoded strings as input, but not checking the assumption before decoding the input. This vulnerability is fixed in 5.6.2.