PT-2026-60266

TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, a user with create udf privilege could upload a crafted shared library and install it as a user-defined function, such as eval, then execute arbitrary C code on the TDengine server side...

PT-2026-60267

Name of the Vulnerable Software and Affected Versions TDengine versions prior to 3.4.1.15 Description An unauthenticated out-of-bounds read, uncontrolled allocation, and integer underflow can occur when the server processes malformed RPC packets. This happens because the transDecompressMsg functi...

PT-2026-60268

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.14, source/libs/parser/src/parTokenizer.c tGetToken incremented past a trailing backslash in a SQL string literal such as 'abc and read one byte beyond the null terminator, allowing an authenticated user w...

PT-2026-60269

TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, a Data Reader admin user on a TDengine Cloud DB instance could run create udf even though standard users should have read-only permissions for non-database objects and show dnodes and...

PT-2026-60264

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, TDengine Enterprise allowed an authenticated low-privilege SQL user to run KILL SSMIGRATE against an active shared-storage migration because mndProcessKillSsMigrateReq called mndKillSsMigrate while the...

CVE-2026-62348: Missing Authorization

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, TDengine Enterprise allowed an authenticated low-privilege SQL user to run KILL SSMIGRATE against an active shared-storage migration because mndProcessKillSsMigrateReq called mndKillSsMigrate while the...

CVE-2026-62355: Improper Privilege Management

TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, a Data Reader adminuser on a TDengine Cloud DB instance could run create udf even though standard users should have read-only permissions for non-database objects and show dnodes and crea...

CVE-2026-62351: Out-of-bounds Read

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, causi...

CVE-2026-62350: Improper Control of Generation of Code

TDengine is an open source, time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, a user with create udf privilege could upload a crafted shared library and install it as a user-defined function, such as eval, then execute arbitrary C code on the TDengine server side...

CVE-2026-62353: Out-of-bounds Read

TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.14, source/libs/parser/src/parTokenizer.c tGetToken incremented past a trailing backslash in a SQL string literal such as 'abc\ and read one byte beyond the null terminator, allowing an authenticated user...

CVE-2026-62349: Stack-based Buffer Overflow

TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earlier, source/libs/parser/src/parUtil.c trimString checks space for only one byte before processing SQL string escape sequences %, , or \x, allowing a one-byte out-of-bounds write to the...

tdengine:sql-fuzzer: Index-out-of-bounds in sql-fuzzer

Detailed Report: https://oss-fuzz.com/testcase?key=5406899751944192 Project: tdengine Fuzzing Engine: libFuzzer Fuzz Target: sql-fuzzer Job Type: libfuzzerubsantdengine Platform Id: linux Crash Type: Index-out-of-bounds Crash Address: Crash State: sql-fuzzer Sanitizer: undefined UBSAN Recommended...

CVE-2026-42542

TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version...

EUVD-2026-36136

TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version...

CVE-2026-42542

CVE-2026-42542 affects TDengine versions 3.4.0.0–3.4.1.5. An unauthenticated remote attacker can cause a denial of service by sending a single crafted RPC packet, triggering an integer underflow in uvConnMayGetUserInfo() and crashing the taosd server. Impact is limited to availability (A) with ne...

CVE-2026-42542 TDengine has an integer underflow in uvConnMayGetUserInfo() allows unauthenticated remote crash (DoS)

TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version...

CVE-2026-42542 TDengine has an integer underflow in uvConnMayGetUserInfo() allows unauthenticated remote crash (DoS)

TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version...

CVE-2026-42542 TDengine has an integer underflow in uvConnMayGetUserInfo() allows unauthenticated remote crash (DoS)

TDengine is an open source, time-series database optimized for Internet of Things devices. In versions 3.4.0.0 through 3.4.1.5, an unauthenticated remote attacker can crash the taosd server process by sending a single crafted RPC packet. No credentials or prior session state are required. Version...

PT-2026-48533

Name of the Vulnerable Software and Affected Versions TDengine versions 3.4.0.0 through 3.4.1.5 Description An unauthenticated remote attacker can cause the taosd server process to crash by sending a single crafted RPC Remote Procedure Call packet. This action does not require any credentials or ...

TDengine 数字错误漏洞

TDengine is an open-source, high-performance, cloud-native time series database developed by the TDengine company. There are digital error vulnerabilities in the TDengine 3.4.0.0 to 3.4.1.5 version. These vulnerabilities stem from unverified remote attackers sending specially crafted RPC packets,...