CSRF in Bitly oauth2_proxy 2.1 during authentication flow
Priority LOW 39CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-352.
Summary
CSRF in Bitly oauth2_proxy 2.1 during authentication flow
Why it matters now
EPSS 0.00739 54th percentileScored 2026-11-07
Fix Fixed github.com/bitly/oauth2_proxy (Go): 2.2.0
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/bitly/oauth2_proxy (Go) | before 2.2.0 | 2.2.0 | Patch available | GHSA-rrm8-32g4-w8m3 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/bitly/oauth2_proxy (Go) Vendor— Affected before 2.2.0 Fixed in 2.2.0 Patch available GHSA-rrm8-32g4-w8m3
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:oauth2_proxy_project:oauth2_proxy:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | oauth2-proxy |
- cpe:2.3:a:oauth2_proxy_project:oauth2_proxy:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·oauth2-proxy
Remediation
- Fix · GHSA-rrm8-32g4-w8m3 github.com/bitly/oauth2_proxy (Go) Fixed in 2.2.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2017-1000069
- 2026-10-03 Alias added: GHSA-rrm8-32g4-w8m3
References
More oauth2-proxy Oauth2 Proxy vulnerabilities
- TI-2025-34353 OAuth2-Proxy has authentication bypass in oauth2-proxy skip_auth_routes due to Query Parameter inclusion CVSS 3.1CRITICAL 9.1
- TI-2026-29315 OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing CVSS 3.1CRITICAL 9.1
- TI-2026-26722 OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode CVSS 3.1CRITICAL 9.1
- TI-2026-29698 OAuth2 Proxy has an Authentication Bypass via Fragment Confusion in skip_auth_routes and skip_auth_regex CVSS 3.1HIGH 8.2
- TI-2020-08927 Open Redirect in OAuth2 Proxy CVSS 3.1HIGH 7.1
- TI-2026-29314 OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims CVSS 3.1MEDIUM 6.8
Sources
- CVE-2017-1000069 · CVE Program
- CVE-2017-1000069 · NVD
- FIRST EPSS
- GHSA-rrm8-32g4-w8m3 · GitHub Advisory Database · CC BY 4.0
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