FasterXML Jackson up to 1.9.13 ObjectMapper.readValue denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k1.32+

Summaryinfo

A vulnerability classified as problematic was found in FasterXML Jackson 1.8.3/1.9.2/1.9.11/1.9.12/1.9.13. This affects the function ObjectMapper.readValue. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2026-95155. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in FasterXML Jackson 1.8.3/1.9.2/1.9.11/1.9.12/1.9.13. It has been rated as problematic. Affected by this issue is the function ObjectMapper.readValue. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

FasterXML Jackson 1.x, confirmed in jackson-mapper-asl versions 1.8.3, 1.9.2, 1.9.11, 1.9.12, and 1.9.13, allows attackers to cause a denial of service by supplying deeply nested JSON input to an application that deserializes untrusted JSON using ObjectMapper.readValue.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-95155 since 09/22/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. 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.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/22/2026 CVE reserved
10/15/2026 +23 days Advisory disclosed
10/15/2026 +0 days VulDB entry created
10/15/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-95155 (🔒)
GCVE (CVE): GCVE-0-2026-95155
GCVE (VulDB): GCVE-100-420686

Entryinfo

Created: 10/15/2026 17:37
Changes: 10/15/2026 17:37 (54)
Complete: 🔍
Cache ID: 216::103

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