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CVE-2026-105862 — Vulnerability in payload — CVE Details

HIGH

Payload: Bypassed sanitization of user uploaded SVGs

Published October 7, 2026Updated October 7, 2026Source: osv

Summary

## Impact A malicious SVG file upload could bypass sanitization, be stored, and execute attacker-controlled JavaScript (XSS) after a user downloads it and opens it. **You are affected if:** - You have a collection configured to upload and allow SVG files which can then be downloaded by users. ## Patches The fix validates SVG content on every upload path and hardens SVG/XML delivery so stored SVGs cannot frame attacker content. Users should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`. ## Workarounds Disallow SVG uploads, or serve uploaded SVGs as downloads with Content-Disposition: attachment and a strict CSP. These mitigations reduce exposure but do not replace upgrading when the patched release is available.

Advisory Timeline

  • First published October 7, 2026 (4 days ago).
  • Last revised October 7, 2026 — 0 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update payload to 4.0.0-canary.34 or later
npm install payload@4.0.0-canary.34
npm
Update payload to 3.90.0 or later
npm install payload@3.90.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
payload
npm
All versions4.0.0-canary.34
payload
npm
All versions3.90.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-434
    Unrestricted File UploadMITRE
  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.7 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

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

References

Frequently Asked Questions

What is CVE-2026-105862?
Payload: Bypassed sanitization of user uploaded SVGs This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.7/10).
How do I check if my project is affected by CVE-2026-105862?
CVE-2026-105862 affects payload. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-105862 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.7

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-2pwp-2369-8fg3

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