CVE-2026-62351 Details
Description
TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, source/libs/transport/src/transComm.c transDecompressMsg() read STransCompMsg.contLen when pHead->comp == 1 without first validating that the RPC packet contained the 8-byte STransCompMsg structure, causing an unauthenticated out-of-bounds read, uncontrolled allocation, integer underflow, and server crash. This issue is fixed in version 3.4.1.15.
A denial-of-service vulnerability has been identified in TDengine versions prior to 3.4.1.15. The issue arises in the 'transDecompressMsg()' function within 'source/libs/transport/src/transComm.c'. When the RPC layer receives a packet with the compression flag enabled, the function reads the 'STransCompMsg.contLen' field without verifying that the packet is sufficiently large to include this 8-byte structure. This oversight leads to an unauthenticated out-of-bounds read, uncontrolled memory allocation, integer underflow, and a subsequent server crash. The vulnerability can be exploited by any network-reachable attacker, causing an immediate denial-of-service by crashing the server.
Users should upgrade to TDengine version 3.4.1.15 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 15, 2026CISA-ADP
Assessed Jul 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/taosdata/TDengine/security/advisories/GHSA-8pc4-p252-f5m7 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/taosdata/TDengine/security/advisories/GHSA-8pc4-p252-f5m7 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| TDengine | <= 3.4.1.6 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | CISA-ADP |
| Jul 15, 2026 | New CVE Received | [email protected] |