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...

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-2026-60264

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...

PT-2026-60265

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 sta...

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-2026-60266

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...

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-2026-62349: 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...

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...

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...

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...

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...

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...

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 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 ...

CVE-2026-42542: Integer Underflow (Wrap or Wraparound)

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...