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X-Teaming: Multi-Turn Jailbreaks and Defenses with Adaptive Multi-Agents

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arxiv 2504.13203 v2 pith:ZXP2FNIO submitted 2025-04-15 cs.CR cs.AIcs.CLcs.LGcs.MA

X-Teaming: Multi-Turn Jailbreaks and Defenses with Adaptive Multi-Agents

classification cs.CR cs.AIcs.CLcs.LGcs.MA
keywords multi-turnsafetyx-teamingattackacrossattackschallengesdiversity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Multi-turn interactions with language models (LMs) pose critical safety risks, as harmful intent can be strategically spread across exchanges. Yet, the vast majority of prior work has focused on single-turn safety, while adaptability and diversity remain among the key challenges of multi-turn red-teaming. To address these challenges, we present X-Teaming, a scalable framework that systematically explores how seemingly harmless interactions escalate into harmful outcomes and generates corresponding attack scenarios. X-Teaming employs collaborative agents for planning, attack optimization, and verification, achieving state-of-the-art multi-turn jailbreak effectiveness and diversity with success rates up to 98.1% across representative leading open-weight and closed-source models. In particular, X-Teaming achieves a 96.2% attack success rate against the latest Claude 3.7 Sonnet model, which has been considered nearly immune to single-turn attacks. Building on X-Teaming, we introduce XGuard-Train, an open-source multi-turn safety training dataset that is 20x larger than the previous best resource, comprising 30K interactive jailbreaks, designed to enable robust multi-turn safety alignment for LMs. Our work offers essential tools and insights for mitigating sophisticated conversational attacks, advancing the multi-turn safety of LMs.

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Forward citations

Cited by 17 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Do LLMs Know Their Vulnerable Scenarios?

    cs.AI 2026-07 conditional novelty 7.0

    Scenario jailbreaks suppress refusal via internal concept directions; Concept2Scenario attributes those concepts with SAEs and turns them into transferable natural-language attack scenarios.

  2. AgentCanary: A Security Evaluation Framework for Autonomous AI Agents in Real Executable Environments

    cs.CR 2026-06 unverdicted novelty 7.0

    AgentCanary introduces an Entry × Impact risk taxonomy, high-fidelity real tool environments with persistent state, and multi-dimensional trajectory evaluation to assess AI agent security across models and attacks.

  3. Mitigating Many-shot Jailbreak Attacks with One Single Demonstration

    cs.CR 2026-05 conditional novelty 7.0

    A single safety demonstration appended at inference time mitigates many-shot jailbreak attacks by counteracting implicit malicious fine-tuning on harmful examples.

  4. Conjunctive Prompt Attacks in Multi-Agent LLM Systems

    cs.MA 2026-04 unverdicted novelty 7.0

    Conjunctive prompt attacks split adversarial elements across agents and routing paths in multi-agent LLM systems, evading isolated defenses and succeeding through topology-aware optimization.

  5. SelfGrader: LLM Jailbreak Detection via Anchored Token-Level Logits

    cs.CR 2026-04 unverdicted novelty 7.0

    SelfGrader detects LLM jailbreaks by interpreting logit distributions on numerical tokens with a dual maliciousness-benignness score, cutting attack success rates up to 22.66% while using up to 173x less memory and 26...

  6. SoK: Exposing the Generation and Detection Gaps in LLM-Generated Phishing

    cs.CR 2025-08 unverdicted novelty 7.0

    This SoK paper introduces a nine-stage taxonomy for LLM guardrail breaches in phishing, characterizes evasion and manipulation tactics, and identifies a dynamic-offense versus static-defense asymmetry.

  7. AMT-X: Phase-Structured Multi-Turn Red-Teaming with Checklist-Gated Evaluation

    cs.CR 2026-07 conditional novelty 6.0

    A phase-structured multi-turn red-team framework reports 97.6–100% lenient ASR but only 66.7–78.6% full actionable ASR on six frontier LLMs, with success strongly depth-dependent.

  8. Addressing Over-Refusal in LLMs with Competing Rewards

    cs.LG 2026-06 unverdicted novelty 6.0

    SEAR trains one LLM via adversarial process rewards to explore harmful reasoning paths but flip to safe outputs, reducing over-refusal while preserving safety.

  9. Relevance as a Vulnerability: How Web Retrieval Degrades Safety Alignment in LLM Agents

    cs.CL 2026-05 unverdicted novelty 6.0

    Web retrieval degrades safety alignment in LLM agents, with relevance activating vulnerabilities including a Safe Source Paradox where oppositional content increases harmful compliance.

  10. MT-JailBench: A Modular Benchmark for Understanding Multi-Turn Jailbreak Attacks

    cs.CR 2026-05 unverdicted novelty 6.0

    MT-JailBench is a modular benchmark that standardizes evaluation of multi-turn jailbreaks to identify key success drivers and enable stronger combined attacks.

  11. One Turn Too Late: Response-Aware Defense Against Hidden Malicious Intent in Multi-Turn Dialogue

    cs.CL 2026-05 unverdicted novelty 6.0

    TurnGate uses a new multi-turn intent dataset to detect the harm-enabling closure point in dialogues, outperforming baselines with low over-refusal and generalizing across domains.

  12. One Turn Too Late: Response-Aware Defense Against Hidden Malicious Intent in Multi-Turn Dialogue

    cs.CL 2026-05 unverdicted novelty 6.0

    TurnGate identifies the critical turn in multi-turn dialogues where a response would complete hidden malicious intent, outperforming baselines on the new MTID dataset while keeping over-refusal low.

  13. MultiBreak: A Scalable and Diverse Multi-turn Jailbreak Benchmark for Evaluating LLM Safety

    cs.CL 2026-05 unverdicted novelty 6.0

    MultiBreak is a large diverse multi-turn jailbreak benchmark that achieves substantially higher attack success rates on LLMs than prior datasets and reveals topic-specific vulnerabilities in multi-turn settings.

  14. The Salami Slicing Threat: Exploiting Cumulative Risks in LLM Systems

    cs.CR 2026-04 unverdicted novelty 6.0

    Salami Attack chains low-risk inputs to cumulatively trigger high-risk LLM behaviors, achieving over 90% success on GPT-4o and Gemini while resisting some defenses.

  15. SelfGrader: LLM Jailbreak Detection via Anchored Token-Level Logits

    cs.CR 2026-04 unverdicted novelty 6.0

    SelfGrader grades query harmfulness from anchored numerical-token logits plus PAC-guided dual-perspective ICL, claiming strong jailbreak detection with low FPR and latency.

  16. Evolve the Method, Not the Prompts: Evolutionary Synthesis of Jailbreak Attacks on LLMs

    cs.CL 2025-11 unverdicted novelty 6.0

    EvoSynth evolves code-based jailbreak algorithms via multi-agent self-correction, reaching 85.5% ASR on Claude-Sonnet-4.5 and 95.9% average across targets with greater diversity.

  17. The Periodic Table of LLM Reasoning: A Structured Survey of Reasoning Paradigms, Methods, and Failure Modes

    cs.CL 2026-06 unverdicted novelty 4.0

    A literature survey that introduces a taxonomy for LLM reasoning paradigms, analyzes methodological trends, and synthesizes failure modes from over 300 papers.