CVE-2026-56831: Shopper: Negative discount values accepted and propagated through order calculation pipeline

medium Affects shopper/framework. Feed 2026.10.29.3, updated 2026-10-29; published 2026-09-11.

Shopper: Negative discount values accepted and propagated through order calculation pipeline

Package: shopper/framework Composer
Affected versions: <2.9.0
Fixed in: 2.9.0
Severity: medium CVSS 6.5
Exploitation: not on CISA KEV · EPSS 0% (37.8th percentile)
Published: 2026-09-11
Source: osv.dev

References

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