java-json-tools json-patch Patch Operation JsonPatch.java JsonPatch.apply resource consumption

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-86319
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-07 15:17:34 UTC
Updated2026-09-09 15:17:17 UTC
DescriptionA vulnerability has been found in java-json-tools json-patch up to 1.13. Affected by this vulnerability is the function JsonPatch.apply of the file src/main/java/com/github/fge/jsonpatch/JsonPatch.java of the component Patch Operation Handler. The manipulation leads to resource consumption. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Risk And Classification

Primary CVSS: v4.0 5.5 MEDIUM from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.004050000 probability, percentile 0.340060000 (date 2026-09-09)

Problem Types: CWE-400 | CWE-404 | CWE-400 Resource Consumption | CWE-404 Denial of Service

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.5MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.0CNADECLARED5.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
2.0[email protected]Secondary5AV:N/AC:L/Au:N/C:N/I:N/A:P
2.0CNADECLARED5AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Java-json-tools Json-patch affected 1.0 Not specified
CNA Java-json-tools Json-patch affected 1.1 Not specified
CNA Java-json-tools Json-patch affected 1.2 Not specified
CNA Java-json-tools Json-patch affected 1.3 Not specified
CNA Java-json-tools Json-patch affected 1.4 Not specified
CNA Java-json-tools Json-patch affected 1.5 Not specified
CNA Java-json-tools Json-patch affected 1.6 Not specified
CNA Java-json-tools Json-patch affected 1.7 Not specified
CNA Java-json-tools Json-patch affected 1.8 Not specified
CNA Java-json-tools Json-patch affected 1.9 Not specified
CNA Java-json-tools Json-patch affected 1.10 Not specified
CNA Java-json-tools Json-patch affected 1.11 Not specified
CNA Java-json-tools Json-patch affected 1.12 Not specified
CNA Java-json-tools Json-patch affected 1.13 Not specified

References

ReferenceSourceLinkTags
vuldb.com/submit/908321 [email protected] vuldb.com
vuldb.com/vuln/399510 [email protected] vuldb.com
github.com/java-json-tools/json-patch/issues/167 [email protected] github.com
vuldb.com/vuln/399510/cti [email protected] vuldb.com
github.com/java-json-tools/json-patch [email protected] github.com
vuldb.com/cve/CVE-2026-86319 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: York Shen - Yong Shen - PayPal Cyber Security Team (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-07T00:00:00.000ZAdvisory disclosed
CNA2026-09-07T02:00:00.000ZVulDB entry created
CNA2026-09-07T07:38:12.000ZVulDB entry last update

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