CVE-2026-100872
Description
Sylius versions before 2.1.16 and 2.2.9 fail to validate payment amounts during cart recalculation, allowing unauthenticated attackers to modify order totals after gateway transaction initiation. Attackers can pay a small amount, enlarge the order after gateway capture, and have the system mark the inflated order as fully paid while the gateway captured only the original amount.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/Sylius/Sylius
- https://github.com/Sylius/Sylius/commit/9e9aeaacbc97b1fc01d573e44d6679194527905d
- https://github.com/Sylius/Sylius/pull/19216
- https://github.com/Sylius/Sylius/releases/tag/v2.2.9
- https://github.com/Sylius/Sylius/security/advisories/GHSA-vv4h-q2x8-74g4
- https://www.vulncheck.com/advisories/sylius-2-x-before-2.1.16-and-2.2.9-payment-amount-overwrite
CWEs
CWE-345
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.