CVE-2026-82258 — MEDIUM (4.8)

Q: How severe is CVE-2026-82258?

CVE-2026-82258 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-82258?

Check the references section above for vendor advisories and patch information. Affected products include: Svelte Sveltekit.

Vulnerability Description

SvelteKit versions from 2.38.0 before 2.60.1 contain a race condition in query.batch that allows concurrent requests from different users to merge under a single request context. Attackers can exploit specific timing conditions to access sensitive data from other users' concurrent requests.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Svelte	Sveltekit	>= 2.38.0, < 2.60.1

Related Weaknesses (CWE)

CWE-362

References

https://github.com/sveltejs/kit/security/advisories/GHSA-hgv7-v322-mmgrVendor Advisory
https://www.vulncheck.com/advisories/sveltekit-2.38.0-before-2.60.1-cross-user-dThird Party Advisory

FAQ

What is CVE-2026-82258?

CVE-2026-82258 is a vulnerability with a CVSS score of 4.8 (MEDIUM). SvelteKit versions from 2.38.0 before 2.60.1 contain a race condition in query.batch that allows concurrent requests from different users to merge under a single request context. Attackers can exploit...

How severe is CVE-2026-82258?

CVE-2026-82258 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-82258?

Check the references section above for vendor advisories and patch information. Affected products include: Svelte Sveltekit.