CVE-2020-26161
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a...
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a modified HTTP Host header.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a modified HTTP Host header.
- Record
CVE-2020-26161- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List No score
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a modified HTTP Host header.
- Record
CVE-2020-26161- Updated
- 2026-11-02
EUVDEUVD-2020-18786 No score
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a modified HTTP Host header.
- Record
EUVD-2020-18786- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6ccf-f672-cpvv
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a...
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a modified HTTP Host header.
- Record
GHSA-6ccf-f672-cpvv- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-26161 is a medium vulnerability (CVSS 6.1) in Octopus Deploy, published October 26, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.07%, the 65th percentile. No source names a fixed version.