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No exploitation reportedFix available

CVE-2018-18853

No exploitation reported by the sources we read.

  • Published2018-10-31
  • WeaknessCWE-400

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

Lightbend Spray spray-json through 1.3.4 allows remote attackers to cause a denial of service (resource consumption) because of Algorithmic Complexity during the parsing of a field composed of many decimal digits.

Timeline

dates in UTC
  1. 2018-10-3105:29CVE publishedNVD

Versions per branch

NVD · OSV
Lightbend spray-json
BranchAffectedFixed in
1.3≤ 1.3.4no fix published
spray-json_2.10
BranchAffectedFixed in
1.3< 1.3.51.3.5
spray-json_2.11
BranchAffectedFixed in
1.3< 1.3.51.3.5

1 more product in the sources.

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

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2018-10-31
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-f94m-mqhr-mc29

Frequently asked questions

What is CVE-2018-18853?

Lightbend Spray spray-json through 1.3.4 allows remote attackers to cause a denial of service (resource consumption) because of Algorithmic Complexity during the parsing of a field composed of many decimal digits.

Is CVE-2018-18853 actively exploited?

Active exploitation of CVE-2018-18853 has not been confirmed. Its EPSS score was 1.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-18853?

CVE-2018-18853 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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