Auth Bypass in Google's Closure-Library
Priority LOW 30CWE-625Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
A URL parsing issue in goog.uri of the Google Closure Library versions up to and including v20200224 allows an attacker to send malicious URLs to be parsed by the library and return the wrong authority. Mitigation: update your library to version v20200315.
Why it matters now
EPSS 0.00537 45th percentileScored 2026-11-07
Fix Fixed google-closure-library (npm): 20200315.0.0
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 |
|---|---|---|---|---|---|
| Closure-Library | v20200224 – v20200224 | — | No fix listed | CNA | |
| — | google-closure-library (npm) | before 20200315.0.0 | 20200315.0.0 | Patch available | GHSA-vh5w-fg69-rc8m |
- Closure-Library VendorGoogle Affected v20200224 – v20200224 Fixed in — No fix listed CNA
- google-closure-library (npm) Vendor— Affected before 20200315.0.0 Fixed in 20200315.0.0 Patch available GHSA-vh5w-fg69-rc8m
Remediation
- Fix · GHSA-vh5w-fg69-rc8m google-closure-library (npm) Fixed in 20200315.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-8910
- 2026-10-03 Alias added: GHSA-vh5w-fg69-rc8m
References
Sources
- CVE-2020-8910 · CVE Program
- CVE-2020-8910 · NVD
- FIRST EPSS
- GHSA-vh5w-fg69-rc8m · GitHub Advisory Database · CC BY 4.0
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