What’s Vulnerable › Vulnerabilities

CVE-2020-12283

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-30 · updated 2026-06-17
• Weakness: CWE-601

Description

Sourcegraph before 3.15.1 has a vulnerable authentication workflow because of improper validation in the SafeRedirectURL method in cmd/frontend/auth/redirect.go, such as for the //foo//example.com substring.

Affected products

• sourcegraph: before 3.15.1 — fixed in 3.15.1

How to fix

Upgrade to a fixed version: sourcegraph 3.15.1. Check the vendor advisory for mitigations.

References

• https://github.com/sourcegraph/sourcegraph/blob/master/CHANGELOG.md
• https://github.com/sourcegraph/sourcegraph/commit/c0f48172e815c7f66471a38f0a06d1fc32a77a64
• https://github.com/sourcegraph/sourcegraph/compare/v3.15.0...v3.15.1
• https://github.com/sourcegraph/sourcegraph/pull/10167
• https://securitylab.github.com/advisories/GHSL-2020-085-sourcegraph
• https://github.com/sourcegraph/sourcegraph/blob/master/CHANGELOG.md
• https://github.com/sourcegraph/sourcegraph/commit/c0f48172e815c7f66471a38f0a06d1fc32a77a64
• https://github.com/sourcegraph/sourcegraph/compare/v3.15.0...v3.15.1
• https://github.com/sourcegraph/sourcegraph/pull/10167
• https://securitylab.github.com/advisories/GHSL-2020-085-sourcegraph

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