Lightbend Spray spray-json up to 1.3.4 Hash Code JSON Object resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Lightbend Spray spray-json up to 1.3.4 and classified as problematic. Affected by this issue is an unknown part of the component Hash Code Handler. The manipulation as part of a JSON Object leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

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 many JSON object fields (with keys that have the same hash code).

The bug was discovered 10/31/2018. The weakness was shared 10/30/2018 (Website). The advisory is available at This vulnerability is handled as CVE-2018-18854 since 10/29/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-126373 is related to this item.





CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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Class: Resource consumption
CWE: CWE-400 / CWE-404

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


10/29/2018 🔍
10/30/2018 +1 days 🔍
10/31/2018 +0 days 🔍
10/31/2018 +0 days 🔍
11/01/2018 +1 days 🔍
06/04/2023 +1676 days 🔍


Advisory: 277
Status: Not defined

CVE: CVE-2018-18854 (🔍)
See also: 🔍


Created: 11/01/2018 05:46 AM
Updated: 06/04/2023 09:32 AM
Changes: 11/01/2018 05:46 AM (57), 04/09/2020 12:29 PM (1), 06/04/2023 09:32 AM (3)
Complete: 🔍
Cache ID: 44:45D:40


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