What is CVE-2018-1339?

CVE-2018-1339 is a medium-severity vulnerability in Apache Tika, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2018-04-25.

How severe is CVE-2018-1339?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apache Tika

CVE-2018-1339

A carefully crafted (or fuzzed) file can trigger an infinite loop in Apache Tika's ChmParser in versions of Apache Tika before 1.18.

Published 2018-04-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.026 (84.8th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Apache Tika
Apache Software Foundation Tika — versions < 1.18

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

access.redhat.com/errata/RHSA-2018:2669 (vendor-advisory, Third Party Advisory)
lists.apache.org/thread.html/4d2cb5c819401bb075e2a1130e0d14f0404a136541a6f91da0… (mailing-list)

Frequently asked questions

What is CVE-2018-1339?: CVE-2018-1339 is a medium-severity vulnerability in Apache Tika, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2018-04-25.
How severe is CVE-2018-1339?: Medium severity. CVSS v3 base score is 5.5 out of 10.