CVE-2026-100871 Sylius - Authentication Bypass

Sylius < 1.12.25, < 1.13.17, < 1.14.20, < 2.1.16, and < 2.2.9 contain a broken authentication caused by missing firewall identification in JWT tokens, letting attackers impersonate administrators via shop customer accounts, exploit requires attacker to register with admin email.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
27 September 2026
Updated
15 October 2026
Weakness
CWE-287

Vendor fix

Update to versions 1.12.25, 1.13.17, 1.14.20, 2.1.16, 2.2.9 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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