CVE-2022-43766 — flink-tsfile-connector
HIGHCVE-2022-43766 is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in org.apache.iotdb:flink-tsfile-connector. A fix is available for org.apache.iotdb:flink-tsfile-connector — see the affected versions and patch details below.
Apache IoTDB prior to 0.13.3 allows DoS
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2022-43766.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2022-43766 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 378,567 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
org.apache.iotdb:flink-tsfile-connector☕org.apache.iotdb:iotdb-server☕org.apache.iotdb:tsfile🐍apache-iotdbReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Apache IoTDB versions 0.12.2 through 0.12.6, and 0.13.0 through 0.13.2 are vulnerable to a Denial of Service attack when accepting untrusted patterns for REGEXP queries with Java 8. This issue is patched in 0.13.3. Users should upgrade or use a later version of Java to avoid it.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.iotdb:flink-tsfile-connector | ≥ 0.12.2&&< 0.13.3 | 0.13.3org.apache.iotdb:flink-tsfile-connector:0.13.3 |
| ☕Maven | org.apache.iotdb:iotdb-server | ≥ 0.12.2&&< 0.13.3 | 0.13.3org.apache.iotdb:iotdb-server:0.13.3 |
| ☕Maven | org.apache.iotdb:tsfile | ≥ 0.12.2&&< 0.13.3 | 0.13.3org.apache.iotdb:tsfile:0.13.3 |
| 🐍PyPI | apache-iotdb | ≥ 0.12.2&&< 0.13.3 | 0.13.3pip install --upgrade 'apache-iotdb==0.13.3' |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.iotdb:flink-tsfile-connector, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.iotdb:flink-tsfile-connector to 0.13.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-43766 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2022-43766 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2022-43766. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2022-43766 in your dependencies?
O3 Security finds CVE-2022-43766 across Maven, PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.