Security readout for executives and security teams
Plain-English summary
CVE-2026-0763 is a critical remote code execution issue in GPT Academic 3.91. An unauthenticated attacker could send malicious data that the application improperly deserializes, leading to code execution as root. This creates high risk to confidentiality, integrity, and availability if exposed systems are reachable.
Executive priority
Treat this as urgent for any reachable GPT Academic 3.91 deployment. The business concern is full server compromise without login. Prioritize identification, exposure reduction, and vendor-guided remediation before routine maintenance windows.
Technical view
The flaw is in GPT Academic’s run_in_subprocess_wrapper_func function and is classified as CWE-502, deserialization of untrusted data. ZDI reports network exploitation with low complexity, no authentication, and no user interaction. The CVSS 3.0 score is 9.8, with code execution in the context of root.
Likely exposure
Exposure is likely limited to organizations running GPT Academic 3.91, especially instances reachable over a network or the internet. The source bundle does not identify other affected versions or default exposure conditions.
Exploitation context
The CVE and ZDI advisory state remote unauthenticated exploitation is possible. The source bundle does not report active exploitation, and the CVE is not listed as KEV in the provided data.
Researcher notes
Evidence is concise but serious: ZDI-CAN-27958, CVSS 9.8, CWE-502, unauthenticated RCE, root context. No exploit details, patch version, or broader version range are provided in the source bundle, so validation should focus on confirmed 3.91 assets and official advisory tracking.
Mitigation direction
- Identify all GPT Academic deployments and confirm whether version 3.91 is in use.
- Restrict network access to GPT Academic until vendor guidance is confirmed.
- Run the service with least privilege where operationally possible.
- Check GPT Academic and ZDI guidance for patches, upgrades, or official mitigations.
- Prioritize remediation for internet-accessible or high-trust environment deployments.
Validation and detection
- Inventory GPT Academic instances across servers, containers, and research environments.
- Verify application version from approved administrative or deployment records.
- Review exposure through firewall, reverse proxy, and asset management data.
- Check service account privileges and whether the application runs as root.
- Monitor logs for unexpected subprocess activity or abnormal application behavior.
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-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process 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-2026-0763 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 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/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.
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
9.8CriticalVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ZDI-26-029CVE reference · x_research-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.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.