Vulnerability · Published Sep 27, 2026 · Assigned by VulnCheck
CVE-2026-100871Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 JWT Audience Confusion Allows Admin API Authentication
High 8.8
In plain English
A high-severity improper authentication in Sylius from Sylius. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 76.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- GitHub Security Advisory (GHSA-f6mx-qxjc-55xf) vendor-advisory
- https://github.com/Sylius/Sylius/pull/19213 patch, issue-tracking
- https://github.com/Sylius/Sylius/commit/cdfb672a4d174eb2c73159b25cf5b5f44088f45c patch
- Sylius v2.2.9 Release Notes release-notes
- https://github.com/Sylius/Sylius product
- 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 Authentication third-party-advisory