How severe is CVE-2018-1048?

CVE-2018-1048 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-1048 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1048?

CVE-2018-1048 affects Redhat Jboss Enterprise Application Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1048?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-1048 published?

CVE-2018-1048 was published on 2018-01-24 and last updated on 2026-06-17.

CVE-2018-1048

CVE-2018-1048 is a high-severity vulnerability in Redhat Jboss Enterprise Application Platform with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Redhat Jboss Enterprise Application Platform
Published: 2018-01-24
Last modified: 2026-06-17

Description

It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.

Frequently asked questions

What is CVE-2018-1048?: It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.
How severe is CVE-2018-1048?: CVE-2018-1048 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-1048 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1048?: CVE-2018-1048 affects Redhat Jboss Enterprise Application Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1048?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-1048 published?: CVE-2018-1048 was published on 2018-01-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.1.0:*:*:*:*:*:*:*

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