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BIT-envoy-2021-39206 — Incorrect Authorization with specially crafted requests

2026-10-10T03:57:22.478164+00:00

Affected: Bitnami: envoy

Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, contains two authorization related vulnerabilities CVE-2021-32777 and CVE-2021-32779. This may lead to incorrect routing or authorization policy decisions. With specially crafted requests, incorrect authorization or routing decisions may be made by Pomerium. Pomerium v0.14.8 and v0.15.1 contain an upgraded envoy binary with these vulnerabilities patched. This issue can only be triggered when using path prefix based policy. Removing any such policies should provide mitigation.

EUVD-2026-30498

2026-10-10T03:57:22.478215+00:00

EUVD-2026-30498

fkie_cve-2021-39206

2026-10-10T03:57:22.478231+00:00

GHSA-cfc2-wjcm-c8fm — Incorrect Authorization with specially crafted requests

2026-10-10T03:57:22.478256+00:00

Affected: Go: github.com/pomerium/pomerium

Envoy, which Pomerium is based on, contains two authorization related vulnerabilities:

- [CVE-2021-32777](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32779): incorrectly transform a URL containing a `#fragment` element, causing a mismatch in path-prefix based authorization decisions. - [CVE-2021-32779](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32777): incorrectly handle duplicate headers, dropping all but the last. This may lead to incorrect routing or authorization policy decisions.

### Impact With specially crafted requests, incorrect authorization or routing decisions may be made by Pomerium.

### Patches

Pomerium v0.14.8 and v0.15.1 contain an upgraded envoy binary with these vulnerabilities patched.

### Workarounds

- This issue can only be triggered when using path prefix based policy. Removing any such policies should provide mitigation.

### References [envoy GSA CVE-2021-32777](https://github.com/envoyproxy/envoy/security/advisories/GHSA-r222-74fw-jqr9) [envoy GSA CVE-2021-32779](https://github.com/envoyproxy/envoy/security/advisories/GHSA-6g4j-5vrw-2m8h) [envoy announcement](https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ)

### For more information If you have any questions or comments about this advisory: * Open an issue in [pomerium/pomerium](https://github.com/pomerium/pomerium/issues) * Email us at [security@pomerium.com](mailto:security@pomerium.com)

gsd-2021-39206

2026-10-10T03:57:22.478292+00:00

gsd-2021-39206