Security readout for executives and security teams
Plain-English summary
CVE-2026-55410 lets a highly privileged NocoBase backup-management user turn a malicious PostgreSQL backup restore into command execution on the NocoBase server. Because exploitation requires backup restore privileges, it is not a broad unauthenticated internet risk, but compromise of that role could have serious operational impact. It is fixed in 2.1.19.
Executive priority
Prioritize remediation for internet-facing or business-critical NocoBase systems where backup administrators exist. This is not a mass unauthenticated risk, but a privileged account compromise could become server command execution.
Technical view
In @nocobase/plugin-backups before 2.1.19, PostgreSQL restore logic interpolated database.schema from _metadata.json into shell command strings executed with Node.js child_process.exec(). Untrusted backup metadata could therefore affect command execution. CVSS 3.1 is 6.7: network reachable, low complexity, high privileges required, no user interaction.
Likely exposure
Exposure is limited to NocoBase deployments below 2.1.19 that use the backups plugin with PostgreSQL restore capability. The attacker needs backup-management restore privileges or control of an account/workflow with those privileges.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not marked KEV. Practical abuse depends on the ability to restore a crafted backup, but successful exploitation runs commands as the NocoBase server process.
Researcher notes
The key trust boundary is backup metadata consumed during PostgreSQL restore. The vulnerable path used database.schema from _metadata.json inside shell command construction. Research should focus on version confirmation, plugin use, privilege mapping, and restore audit evidence, not exploit reproduction.
Mitigation direction
- Upgrade NocoBase to version 2.1.19 or later.
- Review vendor advisory and release notes for deployment-specific guidance.
- Restrict backup restore privileges to tightly controlled administrators.
- Audit recent backup uploads and restore activity for unusual provenance.
- Treat compromised backup-management accounts as high-impact incidents.
Validation and detection
- Inventory all NocoBase instances and confirm their versions.
- Identify deployments using @nocobase/plugin-backups with PostgreSQL.
- Verify production systems are running 2.1.19 or later.
- Review role assignments for backup-management or restore permissions.
- Check logs for recent restores from untrusted or unexpected backups.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-55410 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H1.25.5GitHub_MVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/nocobase/nocobase/security/advisories/GHSA-p853-83gj-wjj3CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/nocobase/nocobase/commit/0e1aba1b7b112ffc841588963f7343c00edd9806CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/nocobase/nocobase/releases/tag/v2.1.19CVE reference, GitHub_M · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.