diff --git a/be/CMakeLists.txt b/be/CMakeLists.txt
index a55f01fd52789b..71590be60f557e 100644
--- a/be/CMakeLists.txt
+++ b/be/CMakeLists.txt
@@ -154,6 +154,15 @@ message(STATUS "build task executor simulator: ${BUILD_TASK_EXECUTOR_SIMULATOR}"
 option(BUILD_FILE_CACHE_LRU_TOOL "ON for building file cache lru tool or OFF for not" OFF)
 message(STATUS "build file cache lru tool: ${BUILD_FILE_CACHE_LRU_TOOL}")
 
+option(ENABLE_EXPR_ASAN "Build Exprs target with ASAN/UBSAN instrumentation" OFF)
+message(STATUS "enable expr asan: ${ENABLE_EXPR_ASAN}")
+
+set(DORIS_BE_ASAN_SOURCES "" CACHE STRING "Comma-separated list of BE source files to compile with ASAN/UBSAN instrumentation")
+if (DEFINED ENV{DORIS_BE_ASAN_SOURCES} AND NOT DORIS_BE_ASAN_SOURCES)
+    set(DORIS_BE_ASAN_SOURCES "$ENV{DORIS_BE_ASAN_SOURCES}" CACHE STRING "" FORCE)
+endif()
+message(STATUS "be asan sources: ${DORIS_BE_ASAN_SOURCES}")
+
 option(ENABLE_PAIMON_CPP "Enable Paimon C++ integration" ON)
 set(PAIMON_HOME "" CACHE PATH "Paimon install prefix")
 
@@ -453,6 +462,122 @@ set(CXX_FLAGS_ASAN "-O0 -fsanitize=address -fsanitize=undefined -fno-sanitize=fl
 if (COMPILER_CLANG)
     set(CXX_FLAGS_ASAN "${CXX_FLAGS_ASAN} -fsanitize-ignorelist=${UBSAN_IGNORELIST}")
 endif()
+set(DORIS_ASAN_COMPILE_OPTIONS
+    -O0
+    -fsanitize=address
+    -fsanitize=undefined
+    -fno-sanitize=float-cast-overflow
+)
+set(DORIS_ASAN_LINK_OPTIONS
+    -fsanitize=address
+    -fsanitize=undefined
+)
+if (COMPILER_CLANG)
+    list(APPEND DORIS_ASAN_COMPILE_OPTIONS -fsanitize-ignorelist=${UBSAN_IGNORELIST})
+elseif (COMPILER_GCC)
+    list(APPEND DORIS_ASAN_LINK_OPTIONS -static-libasan)
+endif()
+
+function(enable_doris_asan target)
+    target_compile_options(${target} PRIVATE ${DORIS_ASAN_COMPILE_OPTIONS})
+    target_compile_definitions(${target} PRIVATE
+        ADDRESS_SANITIZER
+        UNDEFINED_BEHAVIOR_SANITIZER
+    )
+endfunction()
+
+function(link_doris_asan_runtime target)
+    target_link_options(${target} PRIVATE ${DORIS_ASAN_LINK_OPTIONS})
+endfunction()
+
+set(DORIS_BE_ASAN_SOURCE_LIST)
+if (DORIS_BE_ASAN_SOURCES)
+    string(REPLACE "," ";" DORIS_BE_ASAN_SOURCE_CANDIDATES "${DORIS_BE_ASAN_SOURCES}")
+    foreach(source_candidate IN LISTS DORIS_BE_ASAN_SOURCE_CANDIDATES)
+        string(STRIP "${source_candidate}" source_candidate)
+        if (source_candidate STREQUAL "")
+            continue()
+        endif()
+
+        set(source_candidate_paths)
+        if (IS_ABSOLUTE "${source_candidate}")
+            list(APPEND source_candidate_paths "${source_candidate}")
+        else()
+            list(APPEND source_candidate_paths
+                "${BASE_DIR}/${source_candidate}"
+                "${BASE_DIR}/../${source_candidate}"
+            )
+        endif()
+
+        set(resolved_source_candidate)
+        foreach(source_candidate_path IN LISTS source_candidate_paths)
+            if (EXISTS "${source_candidate_path}")
+                get_filename_component(resolved_source_candidate "${source_candidate_path}" REALPATH)
+                break()
+            endif()
+        endforeach()
+
+        if (NOT resolved_source_candidate)
+            message(FATAL_ERROR "DORIS_BE_ASAN_SOURCES entry '${source_candidate}' does not exist")
+        endif()
+
+        string(FIND "${resolved_source_candidate}" "${BASE_DIR}/src/" be_src_pos)
+        if (NOT be_src_pos EQUAL 0)
+            message(FATAL_ERROR "DORIS_BE_ASAN_SOURCES entry '${source_candidate}' must be under ${BASE_DIR}/src")
+        endif()
+
+        list(APPEND DORIS_BE_ASAN_SOURCE_LIST "${resolved_source_candidate}")
+    endforeach()
+
+    list(REMOVE_DUPLICATES DORIS_BE_ASAN_SOURCE_LIST)
+endif()
+
+function(enable_doris_asan_for_sources target)
+    if (NOT DORIS_BE_ASAN_SOURCE_LIST)
+        return()
+    endif()
+
+    get_target_property(target_sources ${target} SOURCES)
+    if (NOT target_sources)
+        return()
+    endif()
+
+    get_target_property(target_source_dir ${target} SOURCE_DIR)
+    foreach(target_source IN LISTS target_sources)
+        get_filename_component(target_source_abs "${target_source}" ABSOLUTE BASE_DIR "${target_source_dir}")
+        list(FIND DORIS_BE_ASAN_SOURCE_LIST "${target_source_abs}" source_index)
+        if (source_index EQUAL -1)
+            continue()
+        endif()
+
+        set_property(SOURCE "${target_source_abs}" TARGET_DIRECTORY ${target} APPEND PROPERTY
+            COMPILE_OPTIONS ${DORIS_ASAN_COMPILE_OPTIONS})
+        set_property(SOURCE "${target_source_abs}" TARGET_DIRECTORY ${target} APPEND PROPERTY
+            COMPILE_DEFINITIONS ADDRESS_SANITIZER UNDEFINED_BEHAVIOR_SANITIZER)
+        set_property(SOURCE "${target_source_abs}" TARGET_DIRECTORY ${target} PROPERTY
+            SKIP_PRECOMPILE_HEADERS ON)
+        set_property(GLOBAL APPEND PROPERTY DORIS_BE_ASAN_MATCHED_SOURCES "${target_source_abs}")
+        message(STATUS "Enable BE source ASAN for target ${target}: ${target_source_abs}")
+    endforeach()
+endfunction()
+
+function(validate_doris_asan_sources)
+    if (NOT DORIS_BE_ASAN_SOURCE_LIST)
+        return()
+    endif()
+
+    get_property(matched_sources GLOBAL PROPERTY DORIS_BE_ASAN_MATCHED_SOURCES)
+    if (matched_sources)
+        list(REMOVE_DUPLICATES matched_sources)
+    endif()
+
+    foreach(requested_source IN LISTS DORIS_BE_ASAN_SOURCE_LIST)
+        list(FIND matched_sources "${requested_source}" matched_index)
+        if (matched_index EQUAL -1)
+            message(FATAL_ERROR "Requested BE ASAN source '${requested_source}' is not compiled by any registered BE target")
+        endif()
+    endforeach()
+endfunction()
 set(CXX_FLAGS_LSAN "-O0 -fsanitize=leak -DLEAK_SANITIZER")
 ## Use for BE-UT
 set(CXX_FLAGS_ASAN_UT "-O0 -fsanitize=address -DADDRESS_SANITIZER")
@@ -961,6 +1086,50 @@ endif()
 
 add_subdirectory(${SRC_DIR}/util)
 
+set(DORIS_BE_SOURCE_TARGETS
+    Agent
+    Common
+    Core
+    Exec
+    Exprs
+    Format
+    DorisGen
+    IO
+    Storage
+    Runtime
+    Service
+    doris_be
+    Udf
+    Cloud
+    Load
+    InformationSchema
+    meta_tool
+    packed_file_tool
+    index_tool
+    fs_benchmark_tool
+    file_cache_lru_tool
+    file_cache_microbench
+    task_executor_simulator
+)
+foreach(target IN LISTS DORIS_BE_SOURCE_TARGETS)
+    if (TARGET ${target})
+        enable_doris_asan_for_sources(${target})
+    endif()
+endforeach()
+
+if (ENABLE_EXPR_ASAN OR DORIS_BE_ASAN_SOURCES)
+    foreach(target IN LISTS DORIS_BE_SOURCE_TARGETS)
+        if (TARGET ${target})
+            get_target_property(target_type ${target} TYPE)
+            if (target_type STREQUAL "EXECUTABLE")
+                link_doris_asan_runtime(${target})
+            endif()
+        endif()
+    endforeach()
+endif()
+
+validate_doris_asan_sources()
+
 # this include doris_be_test
 if (MAKE_TEST)
     include_directories(${TEST_DIR}/)
diff --git a/be/src/exprs/CMakeLists.txt b/be/src/exprs/CMakeLists.txt
index d8995ccd8ad737..b0f8c10a5552c0 100644
--- a/be/src/exprs/CMakeLists.txt
+++ b/be/src/exprs/CMakeLists.txt
@@ -30,6 +30,9 @@ set(SRC_FILES ${SRC_FILES}
 )
 
 add_library(Exprs STATIC ${SRC_FILES})
+if (ENABLE_EXPR_ASAN)
+    enable_doris_asan(Exprs)
+endif()
 # function_array_distance uses faiss headers (platform_macros.h, distances.h),
 # which are exported by ann_index via PUBLIC linkage with faiss.
 target_link_libraries(Exprs PRIVATE ann_index)
@@ -57,4 +60,4 @@ set(WARNING_OPTION "-Wno-unused-but-set-variable")
 check_cxx_compiler_flag(${WARNING_OPTION} HAS_WARNING_OPTION)
 if (HAS_WARNING_OPTION)
     target_compile_options(Exprs PRIVATE ${WARNING_OPTION} "-Wno-unused-macros")
-endif()
\ No newline at end of file
+endif()
diff --git a/build.sh b/build.sh
index a5fe18b3e8dd11..c627f61c69ce81 100755
--- a/build.sh
+++ b/build.sh
@@ -38,6 +38,27 @@ export TP_LIB_DIR="${DORIS_THIRDPARTY}/installed/lib"
 HADOOP_DEPS_NAME="hadoop-deps"
 . "${DORIS_HOME}/env.sh"
 
+ORIGINAL_BUILD_TYPE="${BUILD_TYPE:-}"
+export BUILD_TYPE='Release'
+echo "Force BUILD_TYPE to ${BUILD_TYPE} for test${ORIGINAL_BUILD_TYPE:+ (was ${ORIGINAL_BUILD_TYPE})}"
+
+ORIGINAL_EXTRA_CXX_FLAGS="${EXTRA_CXX_FLAGS:-}"
+if [[ -n "${ORIGINAL_EXTRA_CXX_FLAGS}" ]]; then
+    FILTERED_EXTRA_CXX_FLAGS=()
+    read -r -a extra_cxx_flags <<< "${ORIGINAL_EXTRA_CXX_FLAGS}"
+    for extra_cxx_flag in "${extra_cxx_flags[@]}"; do
+        if [[ "${extra_cxx_flag}" == '-O1' ]]; then
+            continue
+        fi
+        FILTERED_EXTRA_CXX_FLAGS+=("${extra_cxx_flag}")
+    done
+    EXTRA_CXX_FLAGS="${FILTERED_EXTRA_CXX_FLAGS[*]}"
+    export EXTRA_CXX_FLAGS
+    if [[ "${EXTRA_CXX_FLAGS}" != "${ORIGINAL_EXTRA_CXX_FLAGS}" ]]; then
+        echo "Drop -O1 from EXTRA_CXX_FLAGS for test${ORIGINAL_EXTRA_CXX_FLAGS:+ (was ${ORIGINAL_EXTRA_CXX_FLAGS})}"
+    fi
+fi
+
 # ===== Build Profile =====
 if [[ "${DORIS_BUILD_PROFILE}" == "1" ]]; then
     _BP_STATE="${DORIS_HOME}/.build_profile_state.$$"
@@ -695,6 +716,8 @@ if [[ "${BUILD_BE}" -eq 1 ]]; then
     echo "-- Build fs benchmark tool: ${BUILD_FS_BENCHMARK}"
     echo "-- Build task executor simulator: ${BUILD_TASK_EXECUTOR_SIMULATOR}"
     echo "-- Build file cache lru tool: ${BUILD_FILE_CACHE_LRU_TOOL}"
+    echo "-- Enable Exprs ASAN: ${ENABLE_EXPR_ASAN:-OFF}"
+    echo "-- BE ASAN sources: ${DORIS_BE_ASAN_SOURCES:-}"
 
     mkdir -p "${CMAKE_BUILD_DIR}"
     cd "${CMAKE_BUILD_DIR}"
@@ -719,6 +742,8 @@ if [[ "${BUILD_BE}" -eq 1 ]]; then
         -DUSE_UNWIND="${USE_UNWIND}" \
         -DDISPLAY_BUILD_TIME="${DISPLAY_BUILD_TIME}" \
         -DENABLE_PCH="${ENABLE_PCH}" \
+        -DENABLE_EXPR_ASAN="${ENABLE_EXPR_ASAN:-OFF}" \
+        -DDORIS_BE_ASAN_SOURCES="${DORIS_BE_ASAN_SOURCES:-}" \
         -DUSE_JEMALLOC="${USE_JEMALLOC}" \
         -DUSE_AVX2="${USE_AVX2}" \
         -DARM_MARCH="${ARM_MARCH}" \
diff --git a/regression-test/pipeline/common/custom_env.sh b/regression-test/pipeline/common/custom_env.sh
index 8201deda51c164..161892a15857a4 100644
--- a/regression-test/pipeline/common/custom_env.sh
+++ b/regression-test/pipeline/common/custom_env.sh
@@ -18,3 +18,7 @@
 
 # shellcheck disable=SC2034
 BUILD_FS_BENCHMARK=ON
+ENABLE_EXPR_ASAN=OFF
+# The TeamCity compile stage copies this file to the repo root and only appends
+# BUILD_TYPE later, so source-level ASAN selections must live here.
+DORIS_BE_ASAN_SOURCES=be/src/exprs/vexpr.cpp,be/src/exec/runtime_filter/utils.cpp,be/src/exec/runtime_filter/runtime_filter_consumer.cpp
diff --git a/regression-test/pipeline/common/teamcity-utils.sh b/regression-test/pipeline/common/teamcity-utils.sh
index c9b61c6fb548b2..b8b12f477fd78f 100644
--- a/regression-test/pipeline/common/teamcity-utils.sh
+++ b/regression-test/pipeline/common/teamcity-utils.sh
@@ -253,17 +253,22 @@ trigger_build() {
     local COMMIT_ID_FROM_TRIGGER="${COMMIT_ID_FROM_TRIGGER:-$2}"
     local COMMENT_TRIGGER_TYPE="${COMMENT_TRIGGER_TYPE:-$3}"
     local COMMENT_REPEAT_TIMES="${COMMENT_REPEAT_TIMES:-$4}"
+    local TEAMCITY_BUILD_TYPE_OVERRIDE="${TEAMCITY_BUILD_TYPE_OVERRIDE:-}"
+    local extra_teamcity_params=""
     if [[ -z "${PULL_REQUEST_NUM}" || -z "${COMMIT_ID_FROM_TRIGGER}" || -z "${COMMENT_TRIGGER_TYPE}" ]]; then
         echo "Usage: add_build PULL_REQUEST_NUM COMMIT_ID_FROM_TRIGGER COMMENT_TRIGGER_TYPE [COMMENT_REPEAT_TIMES]"
         return 1
     fi
     local PIPELINE="${comment_to_pipeline[${COMMENT_TRIGGER_TYPE}]}"
+    if [[ -n "${TEAMCITY_BUILD_TYPE_OVERRIDE}" ]]; then
+        extra_teamcity_params="&name=env.BUILD_TYPE&value=${TEAMCITY_BUILD_TYPE_OVERRIDE}"
+    fi
     set -x
     if curl -s -X POST \
         -u OneMoreChance:OneMoreChance \
         -H "Content-Type:text/plain" \
         -H "Accept: application/json" \
-        "http://43.132.222.7:8111/httpAuth/action.html?add2Queue=${PIPELINE}&branchName=pull/${PULL_REQUEST_NUM}&name=env.pr_num_from_trigger&value=${PULL_REQUEST_NUM:-}&name=env.commit_id_from_trigger&value=${COMMIT_ID_FROM_TRIGGER:-}&name=env.repeat_times_from_trigger&value=${COMMENT_REPEAT_TIMES:-1}"; then
+        "http://43.132.222.7:8111/httpAuth/action.html?add2Queue=${PIPELINE}&branchName=pull/${PULL_REQUEST_NUM}&name=env.pr_num_from_trigger&value=${PULL_REQUEST_NUM:-}&name=env.commit_id_from_trigger&value=${COMMIT_ID_FROM_TRIGGER:-}&name=env.repeat_times_from_trigger&value=${COMMENT_REPEAT_TIMES:-1}${extra_teamcity_params}"; then
         set +x
         echo "INFO: Add new build to PIPELINE ${PIPELINE} of PR ${PULL_REQUEST_NUM} with COMMENT_REPEAT_TIMES ${COMMENT_REPEAT_TIMES:-1}"
     else