CVE-2026-104947 EnterpriseDB CVE debrief

Who should care

Defenders responsible for WarehousePG deployments, particularly those with multi-user environments, should assess exposure and potential log output generation. This includes database administrators, security teams, and IT personnel responsible for maintaining WarehousePG installations. They should verify exposure, assess the impact of potential log output generation, and consider compensating controls to detect potential exploitation attempts.

Why it matters

The CVE-2026-104947 vulnerability in WarehousePG 7.2.1 through 7.6.0 allows any authenticated database role to run the gp_log_backend_memory_contexts() function without a GRANT, potentially forcing segment backends of any session to write memory context details to segment server logs.

• Defenders must verify exposure by checking WarehousePG versions and assessing potential log output generation.
• The vulnerability allows any authenticated database role to run the gp_log_backend_memory_contexts() function without a GRANT, potentially generating large amounts of log output.
• Defenders should consider compensating controls, such as monitoring and exception tracking, to detect potential exploitation attempts.

Technical summary

The gp_log_backend_memory_contexts() function in WarehousePG 7.2.1 through 7.6.0 allows any authenticated database role to run without a GRANT, potentially forcing segment backends of any session to write memory context details to segment server logs. This vulnerability can be exploited by low-privileged users to access sensitive information from other users' cached plans and generate large amounts of log output. The vulnerability is a result of a missing authorization check in the gp_log_backend_memory_contexts() function.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential log output generation.

Recommended defensive actions

• Verify exposure by checking WarehousePG versions and assessing potential log output generation.
• Assess the impact of potential log output generation on segment server logs.
• Consider compensating controls, such as monitoring and exception tracking, to detect potential exploitation attempts.
• Review vendor guidance and plan updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide details on the vulnerability and affected versions. However, the corpus does not establish exploitation or impact, requiring verification from official sources. The vulnerability has been confirmed in WarehousePG versions 7.2.1 through 7.6.0. There is no evidence of exploitation in the wild, but defenders should verify exposure and assess potential log output generation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.