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Vulnerabilities

Vulnerability · CVE-2026-26205

opa-envoy-plugun is a plugin to enforce OPA policies with Envoy.

Published Feb 19, 2026 · catalog updated Feb 19, 2026 · opa-envoy-plugun is a plugin

Last checked Nov 12, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-26205. EPSS is 0.53%. Act only if a listed version of opa-envoy-plugun is a plugin is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (opa-envoy-plugun is a plugin).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.53%
Remediation
Version ranges on file
Affected products
vendor open-policy-agent opa-envoy-plugin < 1.13.2-envoy-2

opa-envoy-plugun is a plugin to enforce OPA policies with Envoy. Versions prior to 1.13.2-envoy-2 have a vulnerability in how the field is constructed. HTTP request paths are treated as full URIs when parsed; interpreting leading path segments prefixed with double slashes ( ) as authority components, and therefore dropping them from the parsed path. This creates a path interpretation mismatch between authorization policies and backend servers, enabling attackers to bypass access controls by crafting requests where the authorization filter evaluates a different path than the one ultimately serv

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor open-policy-agent opa-envoy-plugin < 1.13.2-envoy-2< 1.13.2-envoy-2

How to fix CVE-2026-26205

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-26205. EPSS is 0.53%. Act only if a listed version of opa-envoy-plugun is a plugin is installed.

Which versions are affected?

Compare what you have installed with open-policy-agent opa-envoy-plugin < 1.13.2-envoy-2 < 1.13.2-envoy-2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.53%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 19, 2026 · EUVD

    Detected

    opa-envoy-plugun is a plugin to enforce OPA policies with Envoy. Versions prior to 1.13.2-envoy-2 have a vulnerability in how the field is constructed. HTTP request paths are treated as full URIs when parsed; interpreting leading path segments prefixed with double slashes ( ) as authority components, and therefore dropping them from the parsed path. This creates a path interpretation mismatch betw

  2. Feb 19, 2026 · EUVD

    Updated

    opa-envoy-plugun is a plugin to enforce OPA policies with Envoy. Versions prior to 1.13.2-envoy-2 have a vulnerability in how the field is constructed. HTTP request paths are treated as full URIs when parsed; interpreting leading path segments prefixed with double slashes ( ) as authority components, and therefore dropping them from the parsed path. This creates a path interpretation mismatch betw

Sources

  • CVE.orgVulnerability recordCVE-2026-26205

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-26205

    30-day exploitation probability 0.53%

    first.org
  • EUVDVulnerability recordEUVD-2026-7976

    opa-envoy-plugun is a plugin to enforce OPA policies with Envoy. Versions prior to 1.13.2-envoy-2 have a vulnerability in how the field is constructed. HTTP request paths are treated as full URIs when parsed; interpreting leading path segments prefixed with double slashes ( ) as

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 12, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 9, 2026
  • CVE.orgNov 9, 2026
  • EUVDNov 9, 2026