Vulnerability record · CVE-2026-100871 · published 27 September 2026

CVE-2026-100871: Improper authentication vulnerability

Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 fail to include firewall identification in JWT tokens issued by separate Admin and Shop API endpoints. Attackers can register a shop customer account using an administrator's email address and obtain a token that the Admin API resolves to that administrator, granting full administrative access.

8.7 CVSS 4.0 High CWE-287 · Improper authentication Received

8.7CVSS 4.0 base score

—EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

6References

27 Sep 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/Sylius/Sylius
https://github.com/Sylius/Sylius/commit/cdfb672a4d174eb2c73159b25cf5b5f44088f45c
https://github.com/Sylius/Sylius/pull/19213
https://github.com/Sylius/Sylius/releases/tag/v2.2.9
https://github.com/Sylius/Sylius/security/advisories/GHSA-f6mx-qxjc-55xf
https://www.vulncheck.com/advisories/sylius-before-1.12.25-1.13.17-1.14.20-2.1.16-and-2.2.9-jwt-audience-confusion-allow

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Source: NIST National Vulnerability Database (record CVE-2026-100871), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.