CVE-2026-75843 json
ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction
published 3mo ago modified 20d ago also EUVD-2026-60607 , GHSA-p29f-345w-4qwf
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository ArcadeData/arcadedb. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 9.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
ArcadeDB before 26.8.1 fails to bind the authenticated principal on the gRPC transaction executor thread in beginTransaction, allowing authenticated readers to execute JavaScript commands without scripting authorization checks. Attackers can execute executeCommand with a transaction ID to run unrestricted JavaScript that creates server-wide administrator accounts.
Patch / fix
- ArcadeData arcadedb 26.8.1
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Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 2mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- github.com https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-p29f-345w-4qwf referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| CNA | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| CNA | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 |
Inferred packages
No advisory lists a package for this vulnerability yet. The CVE names these as products and links their GitHub repository, and the package registry names the same repository, so they are probably the affected packages. Low confidence: the versions are the CVE’s own for the product, and a stack check reports the package as unchecked when there are none.
| ecosystem | package | repository | affected |
|---|---|---|---|
| pypi | arcadedb | arcadedata/arcadedb | no versions given |
Affected products
- ArcadeData arcadedb
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
github.com
/ArcadeData/arcadedb/security/advisories/GHSA-p29f-345w-4qwf
vendor-advisory, exploit, advisory
-
vulncheck.com
/advisories/arcadedb-before-privilege-escalation-via-grpc-transaction
third-party-advisory
Sources
- CVE List CVE-2026-75843
- NVD CVE-2026-75843
- Maintainer advisory GHSA-p29f-345w-4qwf
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.
The maintainers of ArcadeData/arcadedb published their own advisory on GitHub. Reviewed sources take precedence over it.