Parse Server versions prior to 8.6.56 and 9.6.0-alpha.45 are vulnerable to CVE-2026-33508, where the LiveQuery component inadequately enforces query depth for WebSocket subscriptions. An unauthenticated attacker can exploit this by sending deeply nested logical operators, causing excessive recursion and CPU consumption, leading to a denial of service. This vulnerability carries a CVSS score of 7.5 HIGH, indicating a network attack vector with low complexity and high impact on availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community attention for this issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 8.6.56CPE matchmatch criteria | cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* | ||
>= 9.0.0, < 9.6.0CPE matchmatch criteria | cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* | ||
9.6.0CPE matchmatch criteria | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:* | ||
9.6.0CPE matchmatch criteria | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10:*:*:*:node.js:*:* | ||
9.6.0CPE matchmatch criteria | cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11:*:*:*:node.js:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.