CVE-2026-100871

Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 JWT Audience Confusion Allows Admin API Authentication

State: Published
Severity: 8.7 High
Published: Sep 27, 2026
Updated: Oct 6, 2026
Reserved: Sep 27, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	VulnCheck
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	VulnCheck

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
SyliusSylius	1.11.0 to before 1.12.25Affected 1.13.0 to before 1.13.17Affected 1.14.0 to before 1.14.20Affected 2.0.0 to before 2.1.16Affected 2.2.0 to before 2.2.9Affected

References

GitHub Security Advisory (GHSA-f6mx-qxjc-55xf)vendor-advisory
https://github.com/Sylius/Sylius/pull/19213patchissue-tracking
https://github.com/Sylius/Sylius/commit/cdfb672a4d174eb2c73159b25cf5b5f44088f45cpatch
Sylius v2.2.9 Release Notesrelease-notes
https://github.com/Sylius/Syliusproduct
VulnCheck Advisory: Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 JWT Audience Confusion Allows Admin API Authenticationthird-party-advisory

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