CVE Explorer
CVE-2026-30925
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.0-alpha.14 and 8.6.11, a malicious client can subscribe to a LiveQuery with a crafted $regex pattern that causes catastrophic backtracking, blocking the Node.js event loop. This makes the entire Parse Server unresponsive, affecting all clients. Any Parse Server deployment with LiveQuery enabled is affected. The attacker only needs the application ID and JavaScript key, both of whi
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"parse-server","vendor":"parse-community","versions":[{"status":"affected","version":">= 9.0.0 < 9.5.0-alpha.14"},{"status":"affected","version":"< 8.6.11"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:7c89b23c998a540332641bcb3a686a107ba8fb3d0c7e028f5ebd8c90c08d0bd9 · sha256:5bf5acde3a5555a2… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:7c89b23c998a540332641bcb3a686a107ba8fb3d0c7e028f5ebd8c90c08d0bd9 · sha256:5bf5acde3a5555a2… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-1333","description":"CWE-1333: Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:7c89b23c998a540332641bcb3a686a107ba8fb3d0c7e028f5ebd8c90c08d0bd9 · sha256:5bf5acde3a5555a2… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://github.com/parse-community/parse-server/releases/tag/8.6.11","tags":["x_refsource_MISC"],"url":"https://github.com/parse-community/parse-server/releases/tag/8.6.11"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7c89b23c998a540332641bcb3a686a107ba8fb3d0c7e028f5ebd8c90c08d0bd9 · sha256:5bf5acde3a5555a2… · /containers/cna/references/1
{"name":"https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.14","tags":["x_refsource_MISC"],"url":"https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.14"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7c89b23c998a540332641bcb3a686a107ba8fb3d0c7e028f5ebd8c90c08d0bd9 · sha256:5bf5acde3a5555a2… · /containers/cna/references/2
{"name":"https://github.com/parse-community/parse-server/security/advisories/GHSA-mf3j-86qx-cq5j","tags":["x_refsource_CONFIRM"],"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-mf3j-86qx-cq5j"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7c89b23c998a540332641bcb3a686a107ba8fb3d0c7e028f5ebd8c90c08d0bd9 · sha256:5bf5acde3a5555a2… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.