CWE-271
Privilege Dropping / Lowering Errors
The product does not drop privileges before passing control of a resource to an actor that does not have those privileges.
CVE-2026-35535 (GCVE-0-2026-35535)
Vulnerability from cvelistv5 – Published: 2026-04-03 02:21 – Updated: 2026-06-04 15:01
VLAI
Summary
In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-271 - Privilege Dropping / Lowering Errors
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Sudo project | Sudo |
Affected:
0 , < 3e474c2f201484be83d994ae10a4e20e8c81bb69
(git)
|
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V4.0
(custom)
|
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CVE-2026-44477 (GCVE-0-2026-44477)
Vulnerability from cvelistv5 – Published: 2026-05-28 15:46 – Updated: 2026-05-28 17:28
VLAI
Title
CloudNativePG: Metrics exporter allows privilege escalation to PostgreSQL superuser and OS RCE
Summary
CloudNativePG is a platform designed to manage PostgreSQL databases within Kubernetes environments. Prior to 1.29.1 and 1.28.3, the CloudNativePG metrics exporter opens its PostgreSQL connection as the postgres superuser via the pod-local Unix socket, then demotes the session with SET ROLE pg_monitor. SET ROLE changes only current_user; session_user remains postgres. Any SQL expression evaluated inside the scrape session can invoke RESET ROLE to recover real superuser privileges, then use COPY ... TO PROGRAM to spawn an OS-level subprocess as the postgres user inside the primary pod. The READ ONLY transaction flag does not block this; it gates writes to database state, not external processes. This vulnerability is fixed in 1.29.1 and 1.28.3.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/cloudnative-pg/cloudnative-pg/… | x_refsource_CONFIRM |
| https://github.com/cloudnative-pg/cloudnative-pg/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cloudnative-pg | cloudnative-pg |
Affected:
< 1.28.3
Affected: >= 1.29.0, < 1.29.1 |
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Mitigation ID: MIT-46
Phase: Architecture and Design
Strategy: Separation of Privilege
Description:
- Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Mitigation ID: MIT-1
Phases: Architecture and Design, Operation
Description:
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Mitigation ID: MIT-49
Phase: Architecture and Design
Strategy: Separation of Privilege
Description:
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
No CAPEC attack patterns related to this CWE.