What is CVE-2024-25673?

CVE-2024-25673 is a medium-severity vulnerability in Couchbase Server, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.1/10. Published 2024-09-19.

How severe is CVE-2024-25673?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Couchbase Server

CVE-2024-25673

Couchbase Server 7.6.x before 7.6.2, 7.2.x before 7.2.6, and all earlier versions allows HTTP Host header injection.

Published 2024-09-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (21.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Couchbase Server

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

forums.couchbase.com/tags/security (Issue Tracking)
docs.couchbase.com/server/current/release-notes/relnotes.html (Release Notes)
www.couchbase.com/alerts/ (Vendor Advisory)

Frequently asked questions

What is CVE-2024-25673?: CVE-2024-25673 is a medium-severity vulnerability in Couchbase Server, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.1/10. Published 2024-09-19.
How severe is CVE-2024-25673?: Medium severity. CVSS v3 base score is 6.1 out of 10.