What is CVE-2023-1904?

CVE-2023-1904 is a medium-severity vulnerability in Octopus Server, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.2/10. Published 2023-12-14.

How severe is CVE-2023-1904?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Information disclosure in Octopus Server

CVE-2023-1904

In affected versions of Octopus Server it is possible for the OpenID client secret to be logged in clear text during the configuration of Octopus Server.

Published 2023-12-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Octopus Server
Octopus Deploy Server — versions 2022.2.7897, unspecified

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

advisories.octopus.com/post/2023/sa2023-12/ (Vendor Advisory)

Frequently asked questions

What is CVE-2023-1904?: CVE-2023-1904 is a medium-severity vulnerability in Octopus Server, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.2/10. Published 2023-12-14.
How severe is CVE-2023-1904?: Medium severity. CVSS v3 base score is 4.2 out of 10.