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Fencer Vulns
high 7.5

CVE-2018-15756 json

DoS Attack via Range Requests

published 2018-10-18 8 y ago modified 2026-10-08 31 d ago also GHSA-ffvq-7w96-97p7 , EUVD-2020-0486

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
8.8%
EPSS 8.8% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.springframework:spring-core 4.3.20.RELEASE, 5.0.10.RELEASE, 5.1.1.RELEASE
  • vmware spring_framework 4.3.20, 5.0.10
  • libspring-java Debian 14, Debian 13, Debian 12 4.3.21-1

debian advisories DEBIAN-CVE-2018-15756

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-15756 updated cvss 3.1

springframework: DoS Attack via Range Requests

  • Red Hat JBoss BRMS 5 springframework springframework Red Hat JBoss Data Virtualization 6 springframework springframework Red Hat JBoss Fuse 6 springframework springframework Red Hat JBoss Fuse Service Works 6 springframework springframework Red Hat JBoss SOA Platform 5 springframework springframework
    affected: no fix planned “Out of support scope”
  • Red Hat AMQ
    fixed: vendor fix RHSA-2020:3133
  • Red Hat Fuse 7.6.0
    fixed: vendor fix RHSA-2020:0983
  • Red Hat OpenStack Platform 9 (Mitaka) opendaylight Red Hat OpenStack Platform 10 (Newton) opendaylight Red Hat OpenStack Platform 11 (Ocata) opendaylight Red Hat OpenStack Platform 12 (Pike) opendaylight Red Hat Single Sign-On 7 springframework springframework Red Hat Storage 3 rhevm-dependencies
    +1 more products
    Red Hat Virtualization 4 rhvm-dependencies
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
31 d ago

Exploit prediction

8.80% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.springframework:spring-core
>=5.1.0.RELEASE, <5.1.1.RELEASE
>=5.0.0.RELEASE, <5.0.10.RELEASE
>=4.2.0.RELEASE, <4.3.20.RELEASE
5.1.1.RELEASE
5.0.10.RELEASE
4.3.20.RELEASE

Affected products

  • Pivotal Spring framework

Classification

Technology feeds

References

Sources

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