CVE-2026-22803
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
@sveltejs/kit has memory amplification DoS vulnerability in Remote Functions binary form deserializer (application/x-sveltekit-formdata)
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| npm | @sveltejs/kit | >=2.49.0,<2.49.5 | 2.49.5 |
References
- https://github.com/sveltejs/kit/security/advisories/GHSA-j2f3-wq62-6q46
- https://nvd.nist.gov/vuln/detail/CVE-2026-22803
- https://github.com/sveltejs/kit/commit/8ed8155215b9a74012fecffb942ad9a793b274e5
- https://github.com/sveltejs/kit
- https://github.com/sveltejs/kit/releases/tag/%40sveltejs%2Fkit%402.49.5
- https://github.com/sveltejs/kit/releases/tag/@sveltejs%2Fadapter-node@5.5.1
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.