Parse Server 9.0.0 before 9.10.5-alpha.9 Prototype Pollution Denial of Service
Impact
Parse Server versions 9.0.0 before 9.10.5-alpha.9 contain a prototype pollution vulnerability, allowing clients with class write access to corrupt built-in functions, causing denial of service. Affected versions include 9.0.0 before 9.10.5-alpha.9 and before 8.6.108. This weakness may cause all requests to fail until server restart.
Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.Affected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
parse-community · VulnCheck
parse-server
2 ranges
parse-community · VulnCheck
parse-server
Package identity
pkg:npm/parse-serverExplore parse-server →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
9.0.0 → before 9.10.5-alpha.9
semver versions
unaffected
9.10.5-alpha.9
semver versions
Other versions: unaffected
parse-community · VulnCheck
parse-server
2 ranges
parse-community · VulnCheck
parse-server
Package identity
pkg:npm/parse-serverExplore parse-server →Identity supplied by VulnCheck. Version matching requires compatible range evidence.
Compare with this publisher’s ranges. This does not inspect your installation.
affected
0 → before 8.6.108
semver versions
unaffected
8.6.108
semver versions
Other versions: unaffected
Original source description
Parse Server before 8.6.108 and 9.0.0 before 9.10.5-alpha.9 contains a prototype pollution vulnerability because user-controlled keys are expanded into objects without own-property checks. Clients with class write access can send dot notation field keys or ACL entry names matching built-in object members to corrupt built-in functions, causing all requests to fail until server restart.
Inside the record
Evidence available
Describes the evidence in this view, not whether the product is safe.
Original records
CVE-2026-119569View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.
cve.new JSON →Underlying weaknesses
The source’s classification of what caused the vulnerability.
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
VulnCheck
Environment requirements
These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.
VulnCheck · platform conditions
Any condition may hold
Vulnerable product
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:*From (inclusive): 9.0.0
Before: 9.10.5-alpha.9
Vulnerable product
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:*Before: 8.6.108
Original applicability statements
[
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:*",
"versionStartIncluding": "9.0.0",
"versionEndExcluding": "9.10.5-alpha.9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.6.108"
}
]
}
]
}
]Contributing organizations · 2
Assigning organization
Additional data publisher
What changed
Follow changes- CVE · CVE-2026-119569
Observed 2026-10-30T15:58:25.196Z · upstream updated 2026-10-30T15:53:54.963Z
Prioritization updated
before
[]
after
[ { "source": "CISA-ADP", "type": "SSVC", "role": "CISA Coordinator", "timestamp": "2026-10-30T15:21:11.278620Z", "decisions": [ { "name": "Exploitation", "value": "none" }, { "name": "Automatable", "value": "no" }, { "name": "Technical Impact", "value": "partial" } ] } ]
Large field values are marked as truncated previews. Original source snapshots remain retained.
Showing up to 50 most recent observed changes.