Home/CVE/The Bitly oauth2_proxy in version 2.1 and earlier was affected by an open redirect vulnerability during the start and te
CVE

CVE-2017-1000070

The Bitly oauth2_proxy in version 2.1 and earlier was affected by an open redirect vulnerability during the start and te

The Bitly oauth2_proxy in version 2.1 and earlier was affected by an open redirect vulnerability during the start and termination of the 2-legged OAuth flow. This issue was caused by improper input validation and a violation of RFC-6819.

MEDIUM · CVSS 6.1 EPSS 0.00178
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
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Affected Products & Versions

1
oauth2 proxy project oauth2 proxy<= 2.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go github.com/bitly/oauth2_proxy MODERATE fixed in 2.2.0
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Jul 2017 · 01:18 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/bitly/oauth2_proxy/pull/359PatchThird Party Advisory
https://tools.ietf.org/html/rfc6819#section-5.2.3.5Technical Description
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