Security readout for executives and security teams
Plain-English summary
Crabbox before v0.12.0 lets a user with only shared visibility access obtain agent tickets for Code, WebVNC, and Egress. That can let a low-privileged user act like a trusted lease-side bridge, creating a serious privilege escalation risk.
Executive priority
Treat as high priority where Crabbox supports shared environments or sensitive remote access workflows. The business risk is unauthorized elevation from visibility-only access to agent-level capabilities.
Technical view
The issue is insufficient authorization on three lease ticket endpoints. A low-privileged authenticated user with visibility-only access can obtain bridge-agent tickets. The CVSS 4.0 score is 8.6 high, with low attack complexity, no user interaction, and high confidentiality and integrity impact.
Likely exposure
Exposure is likely limited to organizations running Crabbox before v0.12.0 and using shared lease visibility permissions. Public internet exposure is not established in the source bundle.
Exploitation context
The source bundle does not cite active exploitation or KEV listing. Exploitation requires low privileges and network access to the Crabbox API, but the bundle does not provide evidence of weaponized public exploitation.
Researcher notes
This is mapped to CWE-639 and centers on object-level authorization for lease ticket issuance. The affected endpoints are named in the CVE bundle; avoid validation that could issue live tickets outside authorized testing.
Mitigation direction
- Upgrade Crabbox to v0.12.0 or later.
- Review the v0.12.0 release notes and patch commit.
- Limit shared visibility-only access until upgraded.
- Review users with access to affected leases.
- Follow any additional vendor guidance if published.
Validation and detection
- Inventory Crabbox deployments and confirm running versions.
- Verify the v0.12.0 patch is present in deployed builds.
- Review access records for shared visibility-only lease users.
- Check logs for unusual ticket endpoint activity by low-privileged users.
- Confirm ticket issuance requires appropriate permissions after remediation.
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-639: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-8629 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
- High
- CVSS
- 8.6 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N——VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N2.85.2VulnCheckVulnerability scoring details
Base CVSS 4.0 score
8.6HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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/openclaw/crabbox/releases/tag/v0.12.0CVE reference, VulnCheck · release-notes
- https://github.com/openclaw/crabbox/pull/71CVE reference, VulnCheck · issue-tracking
- https://github.com/openclaw/crabbox/commit/95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191CVE reference, VulnCheck · patch
- https://www.vulncheck.com/advisories/crabbox-privilege-escalation-via-agent-ticket-endpointsCVE reference, VulnCheck · third-party-advisory
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.
Authorization Bypass Through User-Controlled Key
Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.