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No exploitation reportedFix available

CVE-2018-15756

No exploitation reported by the sources we read.

  • Published2018-10-18

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Spring Framework, version 5.1, versions 5.0.x prior to 5.0.10, versions 4.3.x prior to 4.3.20, and older unsupported versions on the 4.2.x branch provide support for range requests when serving static resources through the ResourceHttpRequestHandler, or starting in 5.0 when an annotated controller returns an org.springframework.core.io.Resource. A malicious user (or attacker) can add a range header with a high number of ranges, or with wide ranges that overlap, or both, for a denial of service attack. This vulnerability affects applications that depend on either spring-webmvc or spring-webflux. Such applications must also have a registration for serving static resources (e.g. JS, CSS, images, and others), or have an annotated controller that returns an org.springframework.core.io.Resource. Spring Boot applications that depend on spring-boot-starter-web or spring-boot-starter-webflux are ready to serve static resources out of the box and are therefore vulnerable.

Timeline

dates in UTC
  1. 2018-10-1822:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-15756?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-15756?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Oracle insurance rules palette
BranchAffectedFixed in
10.0= 10.0no fix published
10.1= 10.1no fix published
10.2= 10.2no fix published
10.2= 10.2.0no fix published
10.2= 10.2.4no fix published
11.0= 11.0no fix published
11.0= 11.0.2no fix published
11.1= 11.1.0no fix published
11.2= 11.2.0no fix published
Oracle insurance policy administration j2ee
BranchAffectedFixed in
10.0= 10.0no fix published
10.1= 10.1no fix published
10.2= 10.2no fix published
10.2= 10.2.0no fix published
10.2= 10.2.4no fix published
11.0= 11.0no fix published
11.1= 11.1.0no fix published
11.2= 11.2.0no fix published
Oracle retail predictive application server
BranchAffectedFixed in
14.0= 14.0.3no fix published
14.0= 14.0.3.26no fix published
14.1= 14.1.3no fix published
14.1= 14.1.3.37no fix published
15.0= 15.0.3no fix published
15.0= 15.0.3.100no fix published
16.0= 16.0no fix published
16.0= 16.0.3no fix published

38 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2026-10-08
  • OpenCVESSVC decisionnone—
  • NVDCVSS 3.17.5read 2026-10-23
  • CNACVSS 3.07.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • FIRST EPSSEPSS score9.2 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2018-10-18
Last Modified
2026-10-08
NVD status
Modified

Frequently asked questions

What is CVE-2018-15756?

Spring Framework, version 5.1, versions 5.0.x prior to 5.0.10, versions 4.3.x prior to 4.3.20, and older unsupported versions on the 4.2.x branch provide support for range requests when serving static resources through the ResourceHttpRequestHandler, or starting in 5.0 when an annotated controller returns an org.springframework.core.io.Resource. A malicious user (or attacker) can add a range header with a high number of ranges, or with wide ranges that overlap, or both, for a denial of service attack. This vulnerability affects applications that depend on either spring-webmvc or spring-webflux. Such applications must also have a registration for serving static resources (e.g. JS, CSS, images, and others), or have an annotated controller that returns an org.springframework.core.io.Resource. Spring Boot applications that depend on spring-boot-starter-web or spring-boot-starter-webflux are ready to serve static resources out of the box and are therefore vulnerable.

Is CVE-2018-15756 actively exploited?

Active exploitation of CVE-2018-15756 has not been confirmed. Its EPSS score was 9.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-15756?

CVE-2018-15756 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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