Summary
Trino: Iceberg REST catalog static and vended credentials are accessible via query JSON
Full technical description
Iceberg connector REST catalog static credentials (access key) or vended credentials (temporary access key) are accessible to users that have write privilege on SQL level.
Details
Iceberg REST catalog typically needs access to object storage. This access can be configured in multiple different ways. When storage access is achieved by static credentials (e.g. AWS S3 access key) or vended credentials (temporary access key).
Query JSON is a query visualization and performance troubleshooting facility. It includes serialized query plan and handles for table writes or execution of table procedures. A user that submitted a query has access to query JSON for their query. Query JSON is available from Trino UI or via /ui/api/query/«query_id» and /v1/query/«query_id» endpoints.
The storage credentials are stored in those handles when performing write operations, or table maintenance operations. They are serialized in query JSON. A user with write access to data in Iceberg connector configured to use REST Catalog with static or vended credentials can retrieve those credentials.
Impact
Anyone using Iceberg REST catalog with static or vended credentials is impacted.
The credentials should be considered compromised.
Vended credentials are temporary in nature so they do not need to be rotated. However, underlying data could have been exposed.
CVE-2026-34214 has a CVSS score of 7.7 (High). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (480); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2026-34214? CVE-2026-34214 is a high-severity security vulnerability in io.trino:trino-iceberg (maven), affecting versions >= 439, < 480. It is fixed in 480.
- How severe is CVE-2026-34214? CVE-2026-34214 has a CVSS score of 7.7 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of io.trino:trino-iceberg are affected by CVE-2026-34214? io.trino:trino-iceberg (maven) versions >= 439, < 480 is affected.
- Is there a fix for CVE-2026-34214? Yes. CVE-2026-34214 is fixed in 480. Upgrade to this version or later.
- Is CVE-2026-34214 exploitable, and should I be worried? Whether CVE-2026-34214 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2026-34214 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2026-34214? Upgrade
io.trino:trino-icebergto 480 or later.