CVE-2020-25017
Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1 servicemesh-proxy security update
Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
- Record
CVE-2020-25017- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
- Record
CVE-2020-25017- Updated
- 2026-11-02
EUVDEUVD-2020-17716 No score
Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
- Record
EUVD-2020-17716- Updated
- 2026-11-03
OSV
Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
- Record
CVE-2020-25017- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-02
OSVRHSA-2020:4129
Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1 servicemesh-proxy security update
- Record
RHSA-2020:4129- CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-02
OSVBIT-envoy-2020-25017 No score
Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.
- Record
BIT-envoy-2020-25017- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
envoyBitnami |
before 1.12.7, 1.13.0 up to 1.13.4, 1.14.0 up to 1.14.4, 1.15.0 up to 1.15.1 | 1.12.71.13.41.14.41.15.1 |
servicemesh-proxyRed Hat:service_mesh:1.1::el8 |
before 0:1.1.9-1.el8 | 0:1.1.9-1.el8 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-25017 is a high vulnerability (CVSS 8.3) in Envoyproxy Envoy, published October 1, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.32%, the 70th percentile. Fixed in envoy 1.12.7.