CVE-2026-100871 json
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
published 2026-09-27 42 d ago modified 2026-10-06 33 d ago also EUVD-2026-87943
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Sylius Sylius 1.12.25, 1.13.17, 1.14.20, 2.1.16, 2.2.9
- github.com/Sylius/Sylius@cdfb672 commit
- github.com/Sylius/Sylius#19213 pull request
- github.com/Sylius/Sylius/releases/tag/v2.2.9 release
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 39 d ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | 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 |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.7 | 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:X/V:X/RE:X/U:X |
Affected products
- Sylius Sylius
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/Sylius/Sylius/pull/19213
patch, issue-tracking
-
github.com
/Sylius/Sylius/commit/cdfb672a4d174eb2c73159b25cf5b5f44088f45c
patch
-
github.com
/Sylius/Sylius/security/advisories/GHSA-f6mx-qxjc-55xf
vendor-advisory
-
github.com
/Sylius/Sylius/releases/tag/v2.2.9
release-notes
-
github.com
/Sylius/Sylius
product
-
vulncheck.com
/advisories/sylius-before-1.12.25-1.13.17-1.14.20-2.1.16-and-2.2.9-jwt-audience-confusion-allows-admin-api-aut
third-party-advisory
Sources
- CVE List CVE-2026-100871
- NVD CVE-2026-100871
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