Specializing in cloud infrastructure hardening and advanced threat detection.

• Project: Go Core Image Packages (golang.org/x/image/tiff)
• Vulnerability: Unbounded Memory Allocation / Resource Exhaustion - CVSS 7.5
• Official Advisory: GO-2026-5062 | GHSA-pwfv-328h-75x9
• Impact: Identified a resource validation flaw where processing maliciously crafted tiled TIFF images forces immediate Out of Memory (OOM) errors and Denial of Service (DoS).

• Project: Google go-attestation Library
• Vulnerability: Improper Input Validation / TPM Hash Injection - CVSS 8.9
• Official Advisory: GHSA-9r4w-jg96-92mv
• Impact: Discovered a critical logic flaw in parseEfiSignatureList() where a crafted TPM event log can inject arbitrary SHA256 hashes into a verifier's trusted database, causing a compromised boot state to be falsely accepted.

• Project: Percona Monitoring and Management (PMM)
• Vulnerability: Authenticated Remote Code Execution (RCE) - CVSS 9.9
• Official Advisory: GHSA-hm6f-x2ww-p497
• Impact: Identified a critical flaw allowing full host compromise via reverse shell.

• Project: Google Project Oak
• Vulnerability: Trusted Execution Environment (TEE) Attestation Bypass
• Official Advisory: GHSA-3238-pp48-6m3j
• Impact: Discovered a critical validation flaw enabling a complete bypass of enclave security measurements, allowing untrusted hosts to spoof remote attestation states.

• Project: MLflow (mlflow/mlflow)
• Vulnerability: Path Traversal / Arbitrary File Read
• Official Advisory: GHSA-gqvg-gmmx-x4hm
• Impact: Discovered a path traversal flaw in MLflow artifact retrieval endpoints. An attacker could manipulate URI path parameters to bypass directory containment and read arbitrary files directly from the underlying server filesystem.

• Project: Google Project Oak (project-oak/oak)
• Vulnerability: Stage0 Firmware Integer Overflow / Memory Corruption
• Official Advisory: GHSA-pj9q-pv45-xq8g
• Impact: Discovered an integer overflow in the setup_high_allocator function within the stage0 bootloader firmware. An untrusted host or hypervisor could supply a maliciously crafted E820 memory map entry to trigger silent memory aliasing during heap initialization, leading to enclave memory corruption.

• Project: Google Project Oak (project-oak/oak)
• Vulnerability: Unauthenticated Nonce State Advancement / Denial of Service
• Official Advisory: Pull Request #5162 | Commit 33e1d29
• Impact: Discovered a vulnerability in the OrderedCrypter component where the receive-side nonce counter advanced prior to successful AEAD authentication. An unauthenticated attacker transmitting forged or corrupted encrypted frames could force premature nonce increments, triggering permanent session desynchronization and Denial of Service (DoS).

• Project: Google ADK Go (google/adk-go)
• Vulnerability: Authorization Bypass / Unsanitized Event Execution
• Official Advisory: Pull Request #1357
• Impact: Discovered an authorization flaw where remote Agent-to-Agent (A2A) peers could forge tool confirmation requests resumed from non-agent-authored events, bypassing human-in-the-loop validation gates. Enforced strict author checks to ensure tool execution confirmations are only processed when initiated by the local agent.

• Project: gRPC (grpc/grpc)
• Vulnerability: Improper Output Handling / Buffer Truncation
• Official Advisory: Commit 92c56b6
• Impact: Discovered a truncation flaw in the channelz::TextEncode() large-message fallback mechanism. Unsafe string boundary handling during socket and channel state serialization could trigger message truncation, resulting in malformed diagnostic logs or incomplete telemetry output.

• Project: Google ADK Python (google/adk-python)
• Vulnerability: Path Traversal / Improper URL Input Encoding
• Official Advisory: Pull Request #6676
• Impact: Discovered an improper input encoding vulnerability in RestApiTool path parameter handling. Failure to percent-encode user-supplied path parameter values allowed reserved characters and traversal sequences to manipulate constructed REST API endpoint paths, potentially enabling unauthorized endpoint access or parameter injection.

• Project: TensorFlow (tensorflow/tensorflow)
• Vulnerability: Stack-based Buffer Overflow / Unbound Array Access
• Official Advisory: Pull Request #125223
• Impact: Discovered a stack buffer overflow vulnerability in TensorFlow Lite's Select reference kernel due to fixed-size stack allocation for tensor shapes. Processing malformed models containing tensors with rank greater than 8 exceeded array boundaries, leading to stack memory corruption or runtime crashes during inference.

• Project: Google Tink C++ (tink-crypto/tink-cc)
• Vulnerability: Variable-Length Array (VLA) Unsafe Allocation / Stack Overflow Risk
• Official Advisory: Pull Request #27
• Impact: Discovered non-standard Variable-Length Array (VLA) usage during Ed25519 PEM public-key buffer allocation. Migrated the dynamic stack allocation to a fixed-size std::array to prevent stack boundary exhaustion, undefined behavior, and potential stack overflow vulnerabilities.

• Project: TensorFlow (tensorflow/tensorflow)
• Vulnerability: Arithmetic Overflow / Out-of-Bounds Memory Access
• Official Advisory: Pull Request #123910
• Impact: Discovered an arithmetic overflow vulnerability in TFLite buffer bounds checking logic during model deserialization (tflite::Verify). Processing malformed FlatBuffer models allowed boundary validation checks to be bypassed, leading to out-of-bounds memory access, heap corruption, or runtime crashes.

• Project: Google ADK JS (google/adk-js)
• Vulnerability: Path Traversal / Zip-Slip Blacklist Bypass
• Official Advisory: Pull Request #621
• Impact: Discovered a Zip-Slip bypass vulnerability in archive extraction routines where blacklist-based path validation was insufficient. An attacker supplying a maliciously structured archive could bypass path checks to write or overwrite arbitrary files outside the target extraction directory on the underlying host filesystem.

• Project: Go Extended Cryptography Library (golang/go / x/crypto)
• Vulnerability: Unhandled Protocol State Transition / Denial of Service
• Official Advisory: Issue #80333
• Impact: Discovered a channel stall vulnerability in the x/crypto/ssh package where unhandled protocol state transitions caused concurrent SSH channel handlers to deadlock or hang indefinitely. An unauthenticated or authenticated client could exploit this to exhaust server connections and trigger a Denial of Service (DoS).

• Project: Google XNNPACK (google/XNNPACK)
• Vulnerability: Integer Overflow / Heap-based Buffer Overflow
• Official Advisory: Pull Request #10907
• Impact: Discovered an integer overflow vulnerability during output buffer calculation in the space-to-depth operator. Supplying oversized or maliciously structured tensor dimensions through public API calls could bypass buffer bounds checks, leading to heap memory corruption or runtime crashes.

• Project: Google ADK JS (google/adk-js)
• Vulnerability: Agent-to-Agent (A2A) Metadata Injection / Control Flow Hijacking
• Official Advisory: Pull Request #596
• Impact: Discovered a security flaw in Agent-to-Agent (A2A) communications where untrusted peer-supplied transferToAgent metadata was processed without sanitization. A malicious remote agent could manipulate execution metadata to force unauthorized agent redirection and hijack local control flow.

• Project: OpenXLA & TensorFlow (openxla/xla / tensorflow/tensorflow)
• Vulnerability: Integer Overflow / Out-of-Bounds Memory Access
• Official Advisory: OpenXLA PR #46403 | OpenXLA PR #46495 | TensorFlow PR #124350
• Impact: Discovered an integer overflow vulnerability in Shape::FromProto shape deserialization logic. Processing malformed proto definitions with oversized array bounds could bypass shape validation, leading to out-of-bounds memory access, heap corruption, or runtime crashes across OpenXLA and TensorFlow graph compilers.

• Project: Google XNNPACK (google/XNNPACK)
• Vulnerability: Integer Overflow / Heap-based Buffer Overflow
• Official Advisory: Pull Request #10842
• Impact: Discovered an integer overflow vulnerability in the batch matrix multiplication operator when calculating packed weights allocation size. An attacker supplying oversized, caller-controlled tensor dimensions through public API calls could trigger heap memory corruption or runtime crashes.

• Project: OpenXLA Compiler (openxla/xla)
• Vulnerability: Out-of-Bounds Memory Access / Improper Input Validation
• Official Advisory: Pull Request #46105
• Impact: Discovered a validation vulnerability in BufferAssignment::FromProto where assigned buffer allocation offsets and sizes were deserialized without verifying boundary limits. Loading malformed or untrusted HLO proto definitions allowed unvalidated offsets to trigger out-of-bounds memory access, heap corruption, or unexpected compiler crashes.

• Project: Google XNNPACK (google/XNNPACK)
• Vulnerability: Integer Overflow / Heap-based Buffer Overflow
• Official Advisory: Pull Request #10834
• Impact: Identified an integer overflow flaw during kernel-size dimension calculations in the deconvolution operator. Processing maliciously crafted layer parameters bypassed spatial memory bounds, leading to heap buffer overflows and unexpected memory corruption.

• Project: Go Extended Cryptography Library (golang/go / x/crypto)
• Vulnerability: Cryptographic Parameter Validation Bypass / Improper Input Validation
• Official Advisory: Issue #80418
• Impact: Discovered a vulnerability in the ssh.ParseDSAPrivateKey() function where ASN.1 DER-encoded DSA private keys are processed without verifying the mathematical validity of their core cryptographic parameters (p, q, and g). An application parsing a maliciously structured or malformed private key could be forced into intense CPU exhaustion (Denial of Service), trigger runtime panics, or experience unpredictable cryptographic failures during signature and verification operations.

• Project: Go Extended Cryptography Library (golang/go / x/crypto)
• Vulnerability: Improper Input Sanitization / ANSI Escape Sequence Injection
• Official Advisory: Issue #80302
• Impact: Discovered a vulnerability in the ssh.BannerDisplayStderr() helper function where pre-authentication SSH banners were streamed directly to os.Stderr without data sanitization. A malicious or compromised server could inject arbitrary ANSI escape codes to execute terminal spoofing, manipulate clipboards, or potentially exploit underlying terminal emulator vulnerabilities on the client side.

• Project: Google gVisor Container Sandbox (google/gvisor)
• Vulnerability: Mount Namespace Security / Container Isolation Bypass
• Official Advisory: Issue #13481 | Pull Request #13482
• Impact: Discovered a sandbox isolation flaw where open_tree(OPEN_TREE_CLONE) incorrectly succeeded on MNT_DETACH unmounted paths (which strictly returns EINVAL on native Linux). This allowed a user with container root privileges to clone and re-attach an intentionally isolated filesystem via move_mount(2), completely breaking container containment boundaries.

• Project: Trezor Blockbook Service
• Vulnerability: Unauthenticated Resource Exhaustion (DoS)
• Official Advisory: Trezor Security
• Impact: Identified an amplification flaw where uncapped change indexes in xpub descriptors forced excessive database lookups and address derivations, filling a global in-memory cache and forcing a complete Out-of-Memory (OOM) server crash.

• Project: Trezor Blockbook Service
• Vulnerability: Denial of Service (DoS) via Unbounded Timestamp Array
• Official Advisory: Trezor Security
• Impact: Found a flaw in the historical price API allowing unauthenticated remote attackers to pass massive, unbounded timestamp arrays to trigger rapid server memory exhaustion.

• Project: PowerDNS dnsdist
• Vulnerability: Logic Flaw / Denial of Service (DoS) Mitigation Bypass
• Official Advisory: Pull Request #17287
• Impact: Discovered a critical logic error in bpf-filter.cc where range-based subnet evaluation queries incorrectly triggered a runtime error, completely breaking active eBPF-based blocking mechanisms and leaving the DNS infrastructure exposed during traffic spikes.

• Project: PowerDNS dnsdist
• Vulnerability: Authorization Bypass / Improper Access Control
• Official Advisory: Pull Request #17291
• Impact: Identified a security boundary issue where restricted "Read-Only" API tokens could bypass endpoint separation rules to execute unintended state-changing memory actions (such as purging the global packet cache and exploiting CORS misconfigurations), breaking the isolation between read and write access keys.

• LinkedIn: Prasanna Dabi

"Securing the cloud, one exploit at a time."