CVE-2020-10591

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-03-15 · updated 2026-06-17

Description

An issue was discovered in Walmart Labs Concord before 1.44.0. CORS Access-Control-Allow-Origin headers have a potentially unsafe dependency on Origin headers, and are not configurable. This allows remote attackers to discover host information, nodes, API metadata, and references to usernames via api/v1/apikey.

Affected products

Walmart Concord: before 1.44.0 — fixed in 1.44.0

How to fix

Upgrade to a fixed version: Walmart Concord 1.44.0. Check the vendor advisory for mitigations.

References

https://github.com/walmartlabs/concord/compare/1.43.0...1.44.0
https://github.com/walmartlabs/concord/issues/22
https://github.com/walmartlabs/concord/compare/1.43.0...1.44.0
https://github.com/walmartlabs/concord/issues/22

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