CVE-2026-100870

Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 build administrator password-reset links using the request Host header without validation, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can request password resets for known administrator email addresses with forged Host headers to intercept valid reset tokens and take over administrator accounts.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Sylius/Sylius
https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480
https://github.com/Sylius/Sylius/pull/19215
https://github.com/Sylius/Sylius/releases/tag/v2.2.9
https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq
https://www.vulncheck.com/advisories/sylius-before-1.12.25-1.13.17-1.14.20-2.1.16-and-2.2.9-admin-password-reset-poisoning-via-host-header

Configurations

No configuration.

History

27 Sep 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-27 13:16

Updated : 2026-09-30 16:17

NVD link : CVE-2026-100870

Mitre link : CVE-2026-100870

CVE.ORG link : CVE-2026-100870

JSON object : View

Products Affected

No product.

CWE

CWE-640

Weak Password Recovery Mechanism for Forgotten Password

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