Sourcegraph before 3.15.1 has a vulnerable authentication workflow because of improper…
Priority LOW 30CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
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.
Why it matters now
EPSS 0.01333 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/sourcegraph/sourcegraph (Go): 3.14.4, 3.15.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/sourcegraph/sourcegraph (Go) | before 3.14.4 | 3.14.4 | Patch available | GHSA-mx43-r985-5h4m |
| — | github.com/sourcegraph/sourcegraph (Go) | 3.15.0 to before 3.15.1 | 3.15.1 | Patch available | GHSA-mx43-r985-5h4m |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/sourcegraph/sourcegraph (Go) Vendor— Affected before 3.14.4 Fixed in 3.14.4 Patch available GHSA-mx43-r985-5h4m
- github.com/sourcegraph/sourcegraph (Go) Vendor— Affected 3.15.0 to before 3.15.1 Fixed in 3.15.1 Patch available GHSA-mx43-r985-5h4m
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sourcegraph:sourcegraph:*:*:*:*:*:*:*:* | before 3.15.1 | Vulnerable | sourcegraph |
- cpe:2.3:a:sourcegraph:sourcegraph:*:*:*:*:*:*:*:* Versions before 3.15.1 Vulnerable ·sourcegraph
Remediation
- Fix · GHSA-mx43-r985-5h4m github.com/sourcegraph/sourcegraph (Go) Fixed in 3.14.4 Advisory →
- Fix · GHSA-mx43-r985-5h4m github.com/sourcegraph/sourcegraph (Go) Fixed in 3.15.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12283
- 2026-10-03 Alias added: GHSA-mx43-r985-5h4m
References
Patch 2
Advisory 3
More Sourcegraph vulnerabilities
- TI-2022-07694 Code Injection in Sourcegraph CVSS 3.1HIGH 8.8
- TI-2022-20284 Incorrect default permissions found in Sourcegraph CVSS 3.1CRITICAL 9.0
- TI-2022-20283 Sourcegraph vulnerable to Comand Injection via gitserver CVSS 3.1HIGH 7.9
- TI-2022-11715 Remote Code Execution in sourcegraph CVSS 3.1HIGH 7.2
- TI-2022-07695 Side-channel attack in Sourcegraph Code Monitors CVSS 3.1MEDIUM 6.5
- TI-2021-19629 Side-channel attack in Sourcegraph CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-12283 · CVE Program
- CVE-2020-12283 · NVD
- FIRST EPSS
- GHSA-mx43-r985-5h4m · GitHub Advisory Database · CC BY 4.0
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