How severe is CVE-2018-1339?

CVE-2018-1339 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-1339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1339?

CVE-2018-1339 affects Apache Tika. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1339?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-1339 published?

CVE-2018-1339 was published on 2018-04-25 and last updated on 2026-06-17.

CVE-2018-1339

CVE-2018-1339 is a medium-severity vulnerability in Apache Tika with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-835.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-835
Affected product: Apache Tika
Published: 2018-04-25
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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.
How severe is CVE-2018-1339?: CVE-2018-1339 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-1339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1339?: CVE-2018-1339 affects Apache Tika. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1339?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1339 published?: CVE-2018-1339 was published on 2018-04-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:tika:*:*:*:*:*:*:*:*

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