Security readout for executives and security teams
Plain-English summary
CVE-2026-1406 is an open redirect issue in lcg0124 BootDo. A crafted Host header can influence the login redirect, potentially sending users to an attacker-controlled destination. Business impact is mainly phishing, trust abuse, and user deception rather than server takeover. Public disclosure exists, but the provided sources do not show confirmed active exploitation.
Executive priority
Treat as a medium-priority web application risk. It is unlikely to directly compromise servers, but it can support phishing and brand abuse if BootDo is exposed to users. Prioritize validation for public-facing systems and apply vendor guidance when available.
Technical view
The issue affects BootDo up to commit 5ccd963c74058036b466e038cff37de4056c1600 in AccessControlFilter.java, function redirectToLogin, within Host Header handling. It is classified as CWE-601 open redirect. CVSS 4.0 score is 5.1 with remote network attack, low complexity, low privileges required, and user interaction present.
Likely exposure
Exposure is likely limited to organizations running lcg0124 BootDo, especially internet-facing deployments using the affected AccessControlFilter.java logic. Version mapping is unclear because sources state BootDo uses a rolling release model and specific fixed or affected release versions are not available.
Exploitation context
The exploit has been publicly disclosed and may be used, according to the CVE source bundle. The issue requires user interaction and low privileges per CVSS. It is not listed as CISA KEV in the provided data, so active exploitation should not be assumed.
Researcher notes
Evidence comes mainly from VulDB, CVE records, and a linked public GitHub issue. Sources do not provide clear fixed version data. Avoid assuming all BootDo forks or downstream applications are affected without checking the specific AccessControlFilter.java implementation and deployed commit.
Mitigation direction
- Check lcg0124 BootDo upstream guidance and commits for a fix addressing this issue.
- Update BootDo to a vendor-recommended or latest safe revision when confirmed.
- Review Host header handling and enforce trusted host allowlisting at the application or proxy layer.
- Monitor for suspicious redirects from BootDo login flows.
- Warn users not to trust unexpected login redirects or external destinations.
Validation and detection
- Inventory whether lcg0124 BootDo is deployed in production or internet-facing environments.
- Identify deployed BootDo commit or source snapshot where possible.
- Review AccessControlFilter.java for redirectToLogin Host header dependency.
- Test login redirects in a controlled environment for untrusted external destinations.
- Check web logs for unusual Host header values and unexpected redirect targets.
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-601: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2026-1406 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
- 5.1 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Source materials
- CVE List V5 sourceCVE List V5
- VDB-342794 | lcg0124 BootDo Host Header AccessControlFilter.java redirectToLoginCVE reference · vdb-entry, technical-description
- VDB-342794 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference · signature, permissions-required
- Submit #736271 | BootDo web V1.0 Host header injectionCVE reference · third-party-advisory
- https://github.com/webzzaa/CVE-/issues/5CVE reference · exploit, issue-tracking
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.
URL Redirection to Untrusted Site ('Open Redirect')
URL Redirection to Untrusted Site ('Open Redirect') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.