CVE-2026-121414 json
Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 Denial of Service via afterSave Pointer Update
published 6d ago modified 2d ago also EUVD-2026-115946
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 fails to contain a serialization error when an object update uses a dot notation key targeting a pointer field's object identifier on a class with an afterSave trigger. Attackers, including unauthenticated clients when objects are writable without a session, can send such an update to crash the Node process.
Patch / fix
- parse-community parse-server 8.6.110, 9.10.6-alpha.2
- github.com/parse-community/parse-server#10802 pull request
- github.com/parse-community/parse-server#10803 pull request
Is CVE-2026-121414 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2d ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.2 | 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 |
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 8.2 | 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 |
Affected products
- parse-community parse-server
Classification
- Weakness
-
- CWE-248 Uncaught Exception
References
-
github.com
/parse-community/parse-server/pull/10802
patch, issue-tracking
-
github.com
/parse-community/parse-server/pull/10803
patch, issue-tracking
-
github.com
/parse-community/parse-server/security/advisories/GHSA-wc3c-6843-q7mv
vendor-advisory
-
vulncheck.com
/advisories/parse-server-before-8.6.110-and-9.0.0-before-9.10.6-alpha.2-denial-of-service-via-aftersave-pointe
third-party-advisory
Sources
- CVE List CVE-2026-121414
- NVD CVE-2026-121414
Fencer Intel 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.