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Vulnerability Details CVE-2026-49231

Authentication Bypass by Spoofing vulnerability in opa plugin. An attacker could relay spoofed identity headers to upstream capitalising on non-default configuration in opa plugin. This could allow the attacker to assume higher privileges on the upstream service. This issue affects Apache APISIX: from 3.5.0 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 27.2%
CVSS Severity
CVSS v3 Score 5.4
Products affected by CVE-2026-49231
  • Apache » Apisix » Version: 3.10.0
    cpe:2.3:a:apache:apisix:3.10.0
  • Apache » Apisix » Version: 3.11.0
    cpe:2.3:a:apache:apisix:3.11.0
  • Apache » Apisix » Version: 3.12.0
    cpe:2.3:a:apache:apisix:3.12.0
  • Apache » Apisix » Version: 3.13.0
    cpe:2.3:a:apache:apisix:3.13.0
  • Apache » Apisix » Version: 3.14.0
    cpe:2.3:a:apache:apisix:3.14.0
  • Apache » Apisix » Version: 3.14.1
    cpe:2.3:a:apache:apisix:3.14.1
  • Apache » Apisix » Version: 3.15.0
    cpe:2.3:a:apache:apisix:3.15.0
  • Apache » Apisix » Version: 3.16.0
    cpe:2.3:a:apache:apisix:3.16.0
  • Apache » Apisix » Version: 3.5.0
    cpe:2.3:a:apache:apisix:3.5.0
  • Apache » Apisix » Version: 3.6.0
    cpe:2.3:a:apache:apisix:3.6.0
  • Apache » Apisix » Version: 3.6.1
    cpe:2.3:a:apache:apisix:3.6.1
  • Apache » Apisix » Version: 3.7.0
    cpe:2.3:a:apache:apisix:3.7.0
  • Apache » Apisix » Version: 3.8.0
    cpe:2.3:a:apache:apisix:3.8.0
  • Apache » Apisix » Version: 3.8.1
    cpe:2.3:a:apache:apisix:3.8.1
  • Apache » Apisix » Version: 3.9.0
    cpe:2.3:a:apache:apisix:3.9.0
  • Apache » Apisix » Version: 3.9.1
    cpe:2.3:a:apache:apisix:3.9.1


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