What’s Vulnerable › Vulnerabilities

CVE-2021-23495: Open Redirect

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-02-25 · updated 2026-06-17
• Weakness: CWE-601

Description

The package karma before 6.3.16 are vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Affected products

• karma-runner/karma: before 6.3.16 — fixed in 6.3.16

How to fix

Upgrade to a fixed version: karma-runner/karma 6.3.16. Check the vendor advisory for mitigations.

References

• https://github.com/karma-runner/karma/commit/ff7edbb2ffbcdd69761bece86b7dc1ef0740508d
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2412347
• https://snyk.io/vuln/SNYK-JS-KARMA-2396325
• https://github.com/karma-runner/karma/commit/ff7edbb2ffbcdd69761bece86b7dc1ef0740508d
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2412347
• https://snyk.io/vuln/SNYK-JS-KARMA-2396325

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