Security readout for executives and security teams
Plain-English summary
ArangoDB let highly privileged users download Foxx services from a URL without adequate internal request filtering. In affected versions, that could be abused for blind server-side requests to localhost. Business impact appears limited because attacker privileges are high and CVSS impact is low.
Executive priority
Treat as low-priority unless affected ArangoDB instances are business-critical or admin accounts are weakly controlled. Address during normal patch cycles, with faster action for shared, regulated, or externally managed database environments.
Technical view
CVE-2021-25939 is a CWE-918 blind SSRF in ArangoDB v3.7.0 through v3.9.0-alpha.1. The vulnerable Foxx service URL download path can issue internal requests without proper filtering. CVSS 3.1 is 2.7 with PR:H, UI:N, C:N, I:L, A:N.
Likely exposure
Exposure is most relevant where affected ArangoDB versions are deployed and highly privileged users can install Foxx services from remote URLs. Internet exposure alone is not enough based on the source bundle; privileged access is required.
Exploitation context
The bundle does not show KEV listing or active exploitation. The issue is blind SSRF, so evidence of success may be indirect. Abuse requires high privileges, reducing broad opportunistic risk but leaving insider or compromised-admin scenarios.
Researcher notes
The public bundle names affected versions and two upstream commits but does not provide a fixed release, exploit proof, or active exploitation evidence. Analysis should stay focused on privileged Foxx URL-download behavior and SSRF filtering changes.
Mitigation direction
- Identify affected ArangoDB versions in all environments.
- Check ArangoDB vendor guidance and release notes for fixed versions before upgrading.
- Restrict administrative access to trusted operators and management networks.
- Limit or avoid Foxx service installation from remote URLs where operationally possible.
- Review referenced upstream commits for the vendor’s filtering changes.
Validation and detection
- Inventory ArangoDB versions and compare against v3.7.0 through v3.9.0-alpha.1.
- Confirm who can install Foxx services from URLs.
- Review admin and audit logs for unusual Foxx URL download activity.
- Verify privileged accounts use strong authentication and least privilege.
- Check whether compensating network controls reduce internal request impact.
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-918: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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 lookupCloud metadata behavior lookup
The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-25939 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
- Low
- CVSS
- 2.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
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.
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:N/I:L/A:N1.21.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
2.7LowVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25939CVE reference · x_refsource_MISC
- https://github.com/arangodb/arangodb/commit/d7b35a6884c6b2802d34d79fb2a79fb2c9ec2175CVE reference · x_refsource_MISC
- https://github.com/arangodb/arangodb/commit/d9b7f019d2435f107b19a59190bf9cc27d5f34ddCVE reference · 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.
Server-Side Request Forgery (SSRF)
Server-Side Request Forgery (SSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.