Security readout for executives and security teams
Plain-English summary
GPT-SoVITS through 20250606v2pro may let an unauthenticated attacker run operating-system commands by submitting malicious path values through its web interface. A successful attack could expose or alter data, interrupt service, and compromise the host under the server process account.
Executive priority
Treat internet-facing or broadly accessible deployments as an immediate containment and investigation priority. Restrict access now, determine whether compromise indicators exist, and obtain a vendor-confirmed remediation path. Internally isolated instances still require prompt inventory and review because exploitation could provide host-level access within their privilege boundary.
Technical view
CVE-2026-63766 is a CWE-78 command-injection flaw in webui.py. The ASR, slice, denoise, and uvr5 functions reportedly place unsanitized Gradio textbox values into commands executed with shell=True. Network-accessible instances may therefore permit unauthenticated command execution as the GPT-SoVITS process user.
Likely exposure
Highest risk applies to GPT-SoVITS deployments through 20250606v2pro whose Gradio interface is reachable by untrusted users or networks. Exposure is lower where access is effectively restricted, but the supplied CVE affected-version metadata is inconsistent and should be verified against vendor guidance.
Exploitation context
The CVSS 3.1 score is 9.8 because exploitation reportedly requires no privileges or user interaction and can affect confidentiality, integrity, and availability. The source bundle reports no CISA KEV listing and provides no evidence of active exploitation; absence from KEV does not prove exploitation is absent.
Researcher notes
The reported sinks are four webui.py workflows using shell=True with attacker-controlled path fields. Validation should emphasize code/version comparison and defensive telemetry, without injecting payloads. The bundle names releases through 20250606v2pro, while its structured affected entry says version “0” with defaultStatus “unaffected”; this inconsistency reduces affected-version certainty.
Mitigation direction
- Identify GPT-SoVITS instances and restrict web-interface access to trusted users and networks immediately.
- Check the project issue and vendor guidance for a confirmed patched release or remediation.
- Upgrade only to a vendor-confirmed fixed version when one is identified.
- Run the service with minimal privileges and isolate it from sensitive files, credentials, and systems.
- If safe remediation is unavailable, disable externally reachable instances until vendor guidance is confirmed.
Validation and detection
- Record each deployment's exact GPT-SoVITS version, commit, interface binding, and network reachability.
- Confirm whether untrusted users can access the Gradio interface without authentication.
- Review web, process, and endpoint telemetry for unusual child processes or commands spawned by GPT-SoVITS.
- Verify service-account permissions and investigate unexpected access to credentials, models, or host files.
- After remediation, confirm the installed release is explicitly identified as fixed by authoritative guidance.
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 lookupCVE-2026-63766 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
- Researcher DisclosureCVE reference, VulnCheck · technical-description, issue-tracking
- https://www.vulncheck.com/advisories/gpt-sovits-20250606v2pro-os-command-injection-via-webui-pyCVE 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.
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.