# CVE-2026-117341: Octopus Server invitation code exposure in audit log

Source: https://junglewise.ai/threats/cve-2026-117341-in-affected-versions-of-octopus-server-creating-a-user  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-27. Updated: 2026-10-27  
License: CC BY 4.0 with a link back

CVE-2026-117341 · Severity: info · Published 2026-10-27

Octopus Server, a deployment automation platform, logs user invitation codes in plaintext to audit event logs. Users with appropriate permissions in a space can read these codes and redeem unclaimed invitations to escalate their privileges beyond their assigned role. This allows unauthorized privilege escalation for users who already have access to audit logs.

Technologies: [Octopus Deploy Octopus Server](https://junglewise.ai/threats/technologies/octopus-server). Vendors: [Octopus Deploy](https://junglewise.ai/threats/vendors/octopus-deploy).

## Quick answers

**Is CVE-2026-117341 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-117341 being exploited in the wild.

**How severe is CVE-2026-117341?** Informational severity, published 27 October 2026.

**Which products and versions are affected?** Octopus Deploy Octopus Server 2019.x, 2020.x, 2021.x, 2022.x, 2023.x, 2024.x, 2025.x, 2026.x before 2026.2.13438, and 2026.3.x before 2026.3.15829.

**Is there a fix for CVE-2026-117341?** Yes: fixed in Octopus Server 2026.2.13438, 2026.3.15829, or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-117341 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-117341?** Check whether you run Octopus Deploy Octopus Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in Octopus Server 2026.2.13438, 2026.3.15829, or later

## Technical details

User invitation codes are written unredacted to audit event logs when invitations are created and linked to a space. An authenticated user with audit log read permissions can extract the invitation code, then redeem it to claim the invited user's identity and permissions. The impact depends on the permissions assigned to the originally-invited user account.

## Affected products

- Octopus Deploy Octopus Server 2019.x, 2020.x, 2021.x, 2022.x, 2023.x, 2024.x, 2025.x, 2026.x before 2026.2.13438, and 2026.3.x before 2026.3.15829

## Timeline

- 2026-08-28: disclosed: Discovery date
- 2026-09-18: patched: Patch release date
- 2026-10-27: advisory

## References

- [https://advisories.octopus.com/post/2026/sa2026-16](https://advisories.octopus.com/post/2026/sa2026-16)

## Related threats

- [Octopus Server authorization bypass in LDAP identity editing](https://junglewise.ai/threats/cve-2026-124628-in-affected-versions-of-octopus-server-incorrect-validation-of)
- [Octopus Server LDAP identity injection leading to privilege escalation](https://junglewise.ai/threats/cve-2026-124627-in-affected-versions-of-octopus-server-incorrect-validation-of)
- [Octopus Server OIDC claim validation bypass](https://junglewise.ai/threats/cve-2026-116835-in-affected-versions-of-octopus-server-insufficient-validation)
- [Octopus Server incorrect authorization in project triggers](https://junglewise.ai/threats/cve-2026-93487-in-affected-versions-of-octopus-server-incorrect-validation-of)
- [Octopus Server privilege escalation in LDAP login editing](https://junglewise.ai/threats/cve-2026-105948-in-affected-versions-of-octopus-server-incorrect-validation-of)