What is CVE-2018-8027?

CVE-2018-8027 is a critical-severity vulnerability in Apache Camel, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2018-07-31.

How severe is CVE-2018-8027?

Critical severity. CVSS v3 base score is 9.8 out of 10.

XXE in Apache Camel

CVE-2018-8027

Apache Camel 2.20.0 to 2.20.3 and 2.21.0 Core is vulnerable to XXE in XSD validation processor.

Vulnerability class: XXE (XML External Entity)

Published 2018-07-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.054 (92.7th percentile), scored 2026-10-22.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.055 · newest: 0.054 · change: -0.001

Affected products

Apache Camel — versions 2.21.0
Apache Software Foundation Camel — versions 2.20.0 to 2.20.3, 2.21.0

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

www.securityfocus.com/bid/104933 (VDB Entry, Third Party Advisory, vdb-entry)
lists.apache.org/thread.html/77f596fc63e63c2e9adcff3c34759b32c225cf0b582aedb755… (mailing-list)
camel.apache.org/security-advisories.data/CVE-2018-8027.txt.asc (Mitigation, Vendor Advisory)
lists.apache.org/thread.html/b4014ea7c5830ca1fc28edd5cafedfe93ad4af2d9e69c961c5… (mailing-list)
lists.apache.org/thread.html/2318d7f7d87724d8716cd650c21b31cb06e4d34f6d0f5ee42f… (mailing-list)

Frequently asked questions

What is CVE-2018-8027?: CVE-2018-8027 is a critical-severity vulnerability in Apache Camel, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2018-07-31.
How severe is CVE-2018-8027?: Critical severity. CVSS v3 base score is 9.8 out of 10.