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CVE-2021-3116

🗓️ 11 Jan 2021 05:00:49Reported by mitreType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 5 Media mentions👁 126 Views🌐 WEB

CVE-2021-3116 before_upstream_connection in AuthPlugin in http/proxy/auth.py in proxy.py before 2.3.1 accepts incorrect Proxy-Authorization header data because of a boolean confusion (and versus or)

Related
Detection
Refs
Paths
Social
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-3116
11 Jan 202105:15
–attackerkb
circl
Circl
CVE-2021-3116
11 Jan 202107:45
–circl
cnnvd
CNNVD
Abhinavsingh Proxy.py Authorization Issues Vulnerability
11 Jan 202100:00
–cnnvd
cvelist
Cvelist
CVE-2021-3116
11 Jan 202105:00
–cvelist
github
Github Security Blog
Logic error in authentication in proxy.py
7 Apr 202121:01
–github
mend
Mend
CVE-2021-3116
11 Jan 202105:00
–mend
nvd
NVD
CVE-2021-3116
11 Jan 202105:15
–nvd
osv_ghsa
osv_ghsa
GHSA-CMC7-MFMR-XQRX Logic error in authentication in proxy.py
7 Apr 202121:01
–osv_ghsa
osv_pysec
osv_pysec
PYSEC-2021-46
11 Jan 202105:15
–osv_pysec
prion
Prion
Type confusion
11 Jan 202105:15
–prion
Rows per page
NVD
ParameterPositionPathDescriptionCWE
Proxy-Authorizationheader/The AuthPlugin in http/proxy/auth.py fails to correctly validate the Proxy-Authorization header due to a boolean confusion (using 'and' instead of 'or'), potentially allowing unauthorized access or bypass.CWE-697

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17 Jun 2026 04:04Current
7.4High risk
Vulners AI Score7.4
CVSS 25
CVSS 3.17.5
EPSS0.01694
126