# CVE-2026-22775

## Summary

- **CVE ID:** CVE-2026-22775
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-405
- **Published:** Jan 15, 2026
- **Last Modified:** Jul 15, 2026

## Description

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.

## Affected Products

- sveltejs — devalue (>= 5.1.0, < 5.6.2)

## References

- [CNA](https://github.com/sveltejs/devalue/security/advisories/GHSA-g2pg-6438-jwpf)
- [CNA](https://github.com/sveltejs/devalue/commit/11755849fa0634ae294a15ec0aef2f43efcad7c4)
- [CNA](https://github.com/sveltejs/devalue/releases/tag/v5.6.2)
- [redhat-SADP](https://access.redhat.com/security/cve/CVE-2026-22775)
- [redhat-SADP](https://bugzilla.redhat.com/show_bug.cgi?id=2430109)
- [redhat-SADP](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22775.json)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:2926)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:2144)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.59%
- **EPSS Percentile:** 46.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._