CVE-2026-57480 json
Parse Server: Denial of service via exponential-time processing of deeply nested query operators
published 2026-06-19 4 mo ago modified 2026-10-25 14 d ago also BIT-parse-2026-57480 , EUVD-2026-42421 , GHSA-cgxm-vr2f-6fj8
- cvss
- 8.7
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.12 and 8.6.82, deeply nested $or, $and, and $nor query condition operators in the REST API or LiveQuery query handling could trigger exponential-time processing in the internal query-traversal helper and block the Node.js event loop. This issue is fixed in versions 9.9.1-alpha.12 and 8.6.82.
Patch / fix
- npm parse-server 8.6.82, 9.9.1-alpha.12
- bitnami parse 8.6.82, 9.9.1
- parseplatform parse-server 8.6.82, 9.9.1-alpha.12
- parseplatform parse_server 8.6.82, 9.9.1-alpha.12
- github.com/parse-community/parse-server@0f5d2ad commit
- github.com/parse-community/parse-server@1103c7a commit
- github.com/parse-community/parse-server#10511 pull request
- github.com/parse-community/parse-server#10512 pull request
- github.com/parse-community/parse-server/releases/tag/8.6.82 release
- github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.12 release
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | parse-server | >=9.0.0, <9.9.1-alpha.12 <8.6.82 |
9.9.1-alpha.12 8.6.82 |
| bitnami | parse | <8.6.82 >=9.0.0, <9.9.1 |
8.6.82 9.9.1 |
Affected products
- parse-community parse-server
Classification
- Weakness
-
- CWE-407 Inefficient Algorithmic Complexity
References
-
github.com
/parse-community/parse-server/pull/10511
web
-
github.com
/parse-community/parse-server/pull/10512
web
-
github.com
/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b
web
-
github.com
/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a
web
-
github.com
/parse-community/parse-server/security/advisories/GHSA-cgxm-vr2f-6fj8
web
-
github.com
/parse-community/parse-server/releases/tag/8.6.82
web
-
github.com
/parse-community/parse-server/releases/tag/9.9.1-alpha.12
web
-
github.com
/parse-community/parse-server
package
-
nvd.nist.gov
/vuln/detail/CVE-2026-57480
web
Sources
- CVE List CVE-2026-57480
- GitHub Advisory GHSA-cgxm-vr2f-6fj8
- NVD CVE-2026-57480
- OSV BIT-parse-2026-57480
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.