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jsondiffpatch · Vulnerability

CVSS 3.1 8.2 HIGHCVSS 4.0 8.8 HIGHEUVD CVSS 4.0 8.8 CVSS 4.0 · [email protected] · Secondary 7.8 HIGHCVSS 3.1 · [email protected] · Secondary 8.2 HIGHCVSS_V3 CVSS_V4 Publisher rating HIGHFixed by jsondiffpatch 0.7.6KEV status unknown

cve-program · CVE-2026-8657

Published

Versions of the package jsondiffpatch before 0.7.6 are vulnerable to Prototype Pollution via the jsondiffpatch.patch() and jsondiffpatch/formatters/jsonpatch.patch() APIs. An attacker can perform prototype pollution by supplying crafted delta or JSON Patch documents, as attacker-controlled property names and path segments are used to traverse and modify objects without restricting access to special properties like __proto__ or constructor.prototype, allowing modification of Object.prototype.

Read the publisher's advisory

euvd · EUVD-2026-30670

Published

Versions of the package jsondiffpatch before 0.7.6 are vulnerable to Prototype Pollution via the jsondiffpatch.patch() and jsondiffpatch/formatters/jsonpatch.patch() APIs. An attacker can perform prototype pollution by supplying crafted delta or JSON Patch documents, as attacker-controlled property names and path segments are used to traverse and modify objects without restricting access to special properties like __proto__ or constructor.prototype, allowing modification of Object.prototype.

Read the publisher's advisory

nvd · CVE-2026-8657

Published

Versions of the package jsondiffpatch before 0.7.6 are vulnerable to Prototype Pollution via the jsondiffpatch.patch() and jsondiffpatch/formatters/jsonpatch.patch() APIs. An attacker can perform prototype pollution by supplying crafted delta or JSON Patch documents, as attacker-controlled property names and path segments are used to traverse and modify objects without restricting access to special properties like __proto__ or constructor.prototype, allowing modification of Object.prototype.

Read the publisher's advisory

osv · GHSA-j4fx-xxwh-2485

Published

Versions of the package jsondiffpatch before 0.7.6 are vulnerable to Prototype Pollution via the jsondiffpatch.patch() and jsondiffpatch/formatters/jsonpatch.patch() APIs. An attacker can perform prototype pollution by supplying crafted delta or JSON Patch documents, as attacker-controlled property names and path segments are used to traverse and modify objects without restricting access to special properties like __proto__ or constructor.prototype, allowing modification of Object.prototype.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-8657

Published

jsondiffpatch

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "jsondiffpatch",
                    "versions": [
                        {
                            "version": "0",
                            "lessThan": "0.7.6",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "vendor": "n/a"
                }

org.webjars.npm:jsondiffpatch

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "org.webjars.npm:jsondiffpatch",
                    "versions": [
                        {
                            "version": "0",
                            "lessThan": "*",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "vendor": "n/a"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-30670

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: May 16, 2026, 5:00:09 AM

dateUpdated: Aug 23, 2026, 3:25:14 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-8657

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Deferred

Weakness classifications: CWE-1321

Original publisher date fields

published: 2026-05-16T06:16:18.727

lastModified: 2026-07-05T16:19:45.200

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-j4fx-xxwh-2485

Published

jsondiffpatch

npm

SEMVER · introduced 0 → fixed 0.7.6

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 15 Nov 11:08 UTC · 256 of 275 readable · 252 fully read · documentation 469/469 current