CVEvulnerability
CVE-2026-55778
2.1 LOW
Official page ↗
- Status
- Deferred
- Published
- 2026-07-08
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 2.1 LOW — CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/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
- Weaknesses
- CWE-434
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.11 and 8.6.81, the default fileUpload.fileExtensions blocklist could be bypassed by uploading a file with a non-standard or compound extension and dangerous content type, allowing storage adapters such as S3 and GCS to serve attacker-supplied active content and enable stored cross-site scripting. This issue is fixed in versions 9.9.1-alpha.11 and 8.6.81.
Related
Weakness · CWE (1)
- CWE-434 Unrestricted Upload of File with Dangerous Type weakness
References
- https://github.com/parse-community/parse-server/commit/97c6a78d19f976ec756c1295f08a8fccab90799a github.com
- https://github.com/parse-community/parse-server/commit/be12a60d65b6e140481882037fb896b1f951df50 github.com
- https://github.com/parse-community/parse-server/pull/10505 github.com
- https://github.com/parse-community/parse-server/pull/10506 github.com
- https://github.com/parse-community/parse-server/releases/tag/8.6.81 github.com
- https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.11 github.com
- https://github.com/parse-community/parse-server/security/advisories/GHSA-v8x7-r927-cc93 github.com