Vulnerability · Published Aug 3, 2026 · Assigned by VulnCheck

CVE-2026-58139DuckDB AWS Extension Security Policy Bypass via load_aws_credentials Procedure

Medium 6.5

In plain English

A medium-severity incorrect authorization in duckdb-aws from duckdb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.5%top 56.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The DuckDB AWS extension for DuckDB contains a security policy bypass vulnerability that allows any database user with SQL execution permissions to extract plaintext AWS credentials by calling the load_aws_credentials function with the redact_secret parameter set to false, circumventing the database-wide allow_unredacted_secrets=false policy. Attackers can invoke this single function to retrieve the underlying AWS credential chain including access_key_id, secret_access_key, session_token, and region in plaintext, which are immediately valid against AWS APIs and particularly impactful in managed environments where pg_duckdb is preloaded and an AWS credential chain such as IMDSv2, IRSA, ECS task role, or EC2 instance role is reachable.

Affected products (as reported)

Vendor	Product	Versions
duckdb	duckdb-aws	0 – before 7d04119ee8d3f8836e278f0e8cbf21827ff5338b

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Pull Request issue-tracking
Patch Commit patch
https://www.vulncheck.com/advisories/duckdb-aws-extension-security-policy-bypass-via-load-aws-credentials-procedure third-party-advisory