In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site…
Priority LOW 29CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-601.
Summary
In Octopus Deploy through 2020.4.2, an attacker could redirect users to an external site via a modified HTTP Host header.
Why it matters now
EPSS 0.01073 65th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:octopus:octopus_deploy:*:*:*:*:*:*:*:* | 2019.8.2 – 2020.4.2 | Vulnerable | Octopus Deploy |
- cpe:2.3:a:octopus:octopus_deploy:*:*:*:*:*:*:*:* Versions 2019.8.2 – 2020.4.2 Vulnerable ·Octopus Deploy
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26161
- 2026-10-03 Alias added: GHSA-6ccf-f672-cpvv
References
More Octopus Deploy vulnerabilities
- TI-2020-08583 In Octopus Deploy before 2020.1.5, for customers running on-premises Active Directory… CVSS 3.1HIGH 8.8
- TI-2018-04116 An issue was discovered in Octopus Deploy before 4.1.9. CVSS 3.0HIGH 8.8
- TI-2018-03438 In Octopus Deploy versions 3.2.11 - 4.1.5 (fixed in 4.1.6), an authenticated user with… CVSS 3.0HIGH 8.8
- TI-2017-12930 In Octopus Deploy before 4.1.3, the machine update process doesn't check that the user… CVSS 3.0HIGH 8.8
- TI-2019-08703 In Octopus Deploy 2019.1.0 through 2019.3.1 and 2019.4.0 through 2019.4.5, an… CVSS 3.0HIGH 8.1
- TI-2020-15818 In Octopus Deploy 3.1.0 to 2020.4.0, certain scripts can reveal sensitive information to the user in the task logs. CVSS 3.1HIGH 7.5
Sources
- CVE-2020-26161 · CVE Program
- CVE-2020-26161 · NVD
- FIRST EPSS
- GHSA-6ccf-f672-cpvv · GitHub Advisory Database · CC BY 4.0
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