CacheTrap

CacheTrap Repository for "CacheTrap: Unveiling a Stealthier Gray-Box Trojan against LLMs" , IEEE/ACM International Conference on Computer-Aided Design ICCAD, 2026. arXiv CacheTrap searches for a single bit flip in the KV cache of a fine-tuned LLM classifier and measures the resulting attack succe...

Amplifying Latency and Cost of LLM Inference Via Rowhammer Attack

Large language models LLMs achieve high inference efficiency using optimized GPU kernels generated by just-in-time JIT compilation frameworks such as Triton. Triton compiles GPU kernels through an MLIR/LLVM-based pipeline. We investigate whether a Rowhammer-induced bit-flip in the CPU's DRAM can...

ceph: ceph: RGW STS session tokens vulnerable to CBC bit-flip attack enabling admin privilege escalation

A flaw was found in Ceph RGW's STS Security Token Service session token implementation. The STS tokens use the same unauthenticated AES-128-CBC encryption as CephX, which lacks message authentication and uses a hardcoded initialization vector. Because there is no integrity protection on the token...

BARE-AI: Bit-Flip Attack Resilience in AI Hardware through Built-In Performance Monitors

Deep Neural Networks DNNs are integral to many safety critical systems, yet they remain highly vulnerable to bit-flip attacks BFAs, where a few memory level perturbations can drastically degrade accuracy. Existing defenses incur significant hardware overhead, depend on retraining, or fail against...

Security-Enhanced Seed-Based Weight Quantization for Large Language Models

Large language models LLMs incur substantial storage, memory-bandwidth and energy costs, motivating compact weight representations. Existing seed-based compression methods reconstruct weights from compact pseudo-random representations but do not explicitly account for the non-uniform sensitivity ...

BIT-CEPH-2026-39944 Ceph: CephX AES Authentication error

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

CVE-2026-39944

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

CVE-2026-39944: Use of a Broken or Risky Cryptographic Algorithm

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

CVE-2026-39944 Ceph: CephX AES Authentication error

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

CVE-2026-39944

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

EUVD-2026-67315

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

CVE-2026-39944 Ceph: CephX AES Authentication error

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

CVE-2026-39944 Ceph: CephX AES Authentication error

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

CVE-2026-39944

CVE-2026-39944 affects the Ceph RADOS Gateway (RGW) , where STS session tokens are protected by an AES-128-CBC handler that provides no message authentication. An attacker holding any valid STS token can perform a CBC bit-flip on the acct_type, perm_type, and is_admin fields to forge an is_admin ...

CVE-2026-39944

Ceph is an open-source distributed storage platform providing object, block, and file storage. In versions prior to 20.2.4 and 19.2.6, the RADOS Gateway RGW protects STS session tokens with an AES-128-CBC handler that provides no message authentication, allowing an attacker who holds any valid ST...

Security Notice: NVIDIA Rowhammer - August 2026

NVIDIA has released updated guidance regarding Rowhammer mitigations for NVIDIA GPU and SoC products. NVIDIA recommends a defense-in-depth posture, including enabling SYS-ECC and host IOMMU / DMA isolation. See details below. Go to NVIDIA Product Security. Details NVIDIA received follow-on resear...

PT-2026-82765

Name of the Vulnerable Software and Affected Versions Ceph versions prior to 20.2.4 Ceph versions prior to 19.2.6 Description The RADOS Gateway RGW uses an AES-128-CBC handler to protect STS session tokens that lacks message authentication. This allows an attacker with a valid STS token to perfor...

CVE-2026-39944

A flaw was found in Ceph RGW's STS Security Token Service session token implementation. The STS tokens use the same unauthenticated AES-128-CBC encryption as CephX, which lacks message authentication and uses a hardcoded initialization vector. Because there is no integrity protection on the token...

Bit-Flip Attacks on Vision-Language-Action Models: Action-Decoding Architecture Shapes the Vulnerability

Quantized Vision-Language-Action VLA models expose a weight-fault surface: Rowhammer-style faults can corrupt deployed INT8 bits. We present the first bit-flip attack on a VLA: a few gradient-selected flips reduce closed-loop success to $0%$, while hundreds of random flips are harmless. Across...

Bit-Flip Vulnerability of Shared KV-Cache Blocks in LLM Serving Systems

Rowhammer on GPU DRAM has enabled adversarial bit flips in model weights; shared KV-cache blocks in LLM serving systems present an analogous but previously unexamined target. In vLLM's Prefix Caching, these blocks exist as a single physical copy without integrity protection. Using software fault...