Symbiotic

Tier 2

symbiotic

Restaking

Ethereum

Symbiotic is a generalized shared security system enabling decentralized networks to bootstrap powerful, fully sovereign ecosystems.

6.6Safety Score70% confidence

Latest TVL

$469.68M

DeFiLlama · updated 5/20/2026

Audits

reports collected

Findings

across all audits

Last Updated

5/21/2026

Analyzed

Analysis Overview

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Protocol Overview

Symbiotic is a shared-security middleware platform for restaking protocols, enabling decentralized networks to share validator infrastructure. It manages operator registration, cryptographic key storage, and voting power calculation for multiple networks simultaneously. The protocol holds $469M in TVL on Ethereum and supports multiple signature schemes including BLS BN254, ECDSA, and BLS12-381. Key risks include oracle dependency for price feeds, precision loss for high-decimal tokens, and configuration complexity across interacting modules. The system uses role-based governance with operator jail, blacklist, and whitelist mechanisms for security controls.

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Code Security

8.5/10

Four Cyfrin security audits covering the relay middleware SDK, KeyRegistry, and BLS12-381 library found no critical or high-severity issues across 20 total findings. A high fix rate of 7/13 verified by auditors demonstrates responsive security practices. Two medium-severity issues remain acknowledged and unfixed: Chainlink oracle failures silently return zero voting power during stale data periods, and high-decimal tokens exceeding 24 decimals experience systematic precision loss. Access controls use OpenZeppelin upgradeable contracts properly, and cryptographic libraries correctly implement curve membership and subgroup validation. Code quality is strong with a comprehensive test suite and modular architecture supporting maintainability.

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Economic Security

6.5/10

With $469.7M TVL entirely on Ethereum, Symbiotic operates as middleware infrastructure without a native token. The main economic risks are the acknowledged Chainlink oracle vulnerability where voting power drops to zero during oracle failures, and precision loss affecting tokens with more than 24 decimals. The protocol has no documented fallback oracle mechanism, leaving voting power calculations dependent on a single oracle source. Concentration risk is difficult to assess due to limited vault distribution data. No bug bounty program was documented. The protocol scores 6.5/10, with moderate confidence due to substantial audit coverage but limited tokenomics and collateral composition data.

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Team & Transparency

4.5/10

The team is entirely anonymous with no doxxed members documented despite $469M TVL under management. No Discord or Telegram presence appears in protocol metadata. Four professional Cyfrin audits with zero critical or high findings are the strongest transparency signal. Public GitHub organization at github.com/symbioticfi and active development across September-December 2025 indicate ongoing commitment. No bug bounty program, whitepaper, or team documentation exists in available sources. The protocol scores 4.5/10 with significant data gaps around team composition, community infrastructure, and financial transparency. The open-source commitment and audit history provide some trust foundation despite anonymity.

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Governance

5.0/10

The protocol implements role-based governance using OpenZeppelin AccessControl rather than token-weighted voting, with timelock delays enforced on batch operations via Network::scheduleBatch. Critical parameters including token and vault weights are controlled by designated role holders protected by the checkPermission modifier. Known governance risks include oracle-dependent voting power (voting returns zero during oracle failures), precision loss systematically excluding small stakeholders, and weight manipulation potential though bounds checking was added post-audit. Admin key configuration and multisig details are not documented. The protocol scores 5.0/10 and is assessed as moderately centralized. No emergency pause mechanism documentation was found in available sources.

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Cross-Analysis

Cross-domain analysis reveals amplified risks from the combination of Chainlink dependency, anonymous team, and upgradable contracts with unverified key management. The most likely failure mode is silent oracle failure causing voting power collapse during a critical governance moment, with timelock delays preventing rapid response. The worst-case scenario involves compromised admin keys combined with undocumented upgrade mechanisms allowing vault collateral extraction. Middleware architecture means Symbiotic compromise cascades to all dependent networks. Structural risk amplifiers include no emergency pause documentation, single oracle source with no fallback, and no multisig verification on admin keys. Five distinct attack vectors were identified, with the oracle-plus-governance-delay combination presenting the highest likelihood-severity ratio. The overall risk profile is moderate-to-elevated despite strong code security foundations.

Executive Summary

Executive Summary: Symbiotic

Safety Rating: YELLOW_GREEN

Overall Score: 6.6/10 | Confidence: 0.70 | Data Completeness: 0.50 "The analysis is based primarily on code audit findings that touch governance-adjacent functionality (access control, permissions, voting power calculations)"

Scores by Dimension

Dimension	Score	Key Finding
Code Security	8.5/10	No critical or high-severity vulnerabilities found across 4 Cyfrin audits covering relay contracts, KeyRegistry, and BLS libraries "No critical findings identified in any audit"
Economic Security	6.5/10	Solid TVL of $469.7M on Ethereum, but acknowledged oracle vulnerability allows voting power to drop to zero during Chainlink failures "the acknowledged-but-unfixed oracle failure vulnerability (voting power drops to zero) creates potential for voting manipulation"
Team Transparency	4.5/10	Anonymous team with no doxxed members; strong audit history but limited public-facing documentation "No doxxed team members found in sources — this is a moderate concern for a protocol handling $469M+ in TVL"
Governance	5.0/10	Role-based governance with timelock functionality, but no documented governance token or DAO structure "Significant governance data gaps exist—no governance token documentation, multisig configuration, or DAO structure is available in sources"
Track Record	6.5/10	4 professional audits with no critical/high issues; 2 low-severity issues fixed; no documented exploits "The security audit history shows a protocol that has engaged professional security firms and addressed identified issues, suggesting responsible security practices"

What This Protocol Does

Symbiotic is a generalized shared security system ("middleware SDK") for restaking protocols that provides permissionless validator management and signature aggregation for decentralized networks "Symbiotic SDK is a comprehensive middleware infrastructure that enables permissionless validator management and signature aggregation for decentralized networks". It enables multiple networks to share security provided by staked assets, targeting layer-2 rollups, sidechains, and oracle networks.

Key Strengths

No Critical Vulnerabilities: 4 Cyfrin audits found zero critical or high-severity issues across all covered contracts "No critical findings identified in any audit" and "No high findings identified in any audit"
High Fix Rate: 7 of 13 findings resolved with auditor verification, demonstrating responsive security development "The high fix rate (7/13 issues resolved with auditor verification) demonstrates responsive security development"
Open-Source Commitment: Public GitHub organization at github.com/symbioticfi enables community review and verification "github.com/symbioticfi indicates commitment to transparency"
Professional Auditing: All audits by Cyfrin (0kage, Farouk, ChainDefenders) with full findings published "Lead Auditors"
Role-Based Access Control: OpenZeppelin AccessControl patterns provide structural separation of concerns "The protocol uses OpenZeppelin's established access control patterns"

Key Risks

Oracle Failure Risk: Chainlink oracle failures silently set voting power to zero, potentially disenfranchising operators during critical votes "PricedTokensChainlinkVPCalc::stakeToVotingPowerAt silently returns zero voting power when Chainlink oracles fail"
Precision Loss Bug: High-decimal tokens (>24 decimals) cause systematic voting power loss for legitimate stakeholders "Stake: 999,999 units → Voting Power: 0"
Anonymous Team: No doxxed team members for a protocol handling $469M+ TVL creates trust assumptions that cannot be verified "No doxxed team members found in sources — this is a moderate concern for a protocol handling $469M+ in TVL"
Governance Opacity: No documented governance token, DAO structure, or multisig configuration for critical admin functions "Significant governance data gaps exist—no governance token documentation, multisig configuration, or DAO structure is available"
Single-Chain Concentration: All $469M TVL on Ethereum with no cross-chain diversification "All $469M TVL is on Ethereum mainnet. No cross-chain diversification"

Critical Findings

Oracle Voting Power Collapse (Medium Severity): The PricedTokensChainlinkVPCalc::stakeToVotingPowerAt silently returns zero voting power when Chainlink oracles fail or return stale data "The PricedTokensChainlinkVPCalc::stakeToVotingPowerAt silently returns zero voting power when Chainlink oracles fail or return stale data". This creates potential for manipulation during oracle failures and remains acknowledged but unfixed "the protocol carries meaningful economic risks: the acknowledged-but-unfixed oracle failure vulnerability". No fallback mechanism exists "No explicit fallback mechanism is documented".
Precision Loss Affecting Stakeholders (Medium Severity): NormalizedTokenDecimalsVPCalc::_normalizeVaultTokenDecimals causes integer division truncation for high-decimal tokens (>24 decimals), resulting in zero voting power for stakes that should be significant "NormalizedTokenDecimalsVPCalc::_normalizeVaultTokenDecimals causes integer division truncation for high-decimal tokens". This is acknowledged but unfixed "This **Medium-risk** issue remains acknowledged but unfixed".
Anonymous Team + Upgradable Contracts (Elevated Risk): The combination of anonymous team with upgradeable contracts and undefined upgrade mechanisms creates elevated rug potential "Anonymous Team + Admin Key Control + Upgradability = Elevated Rug Potential". No emergency pause mechanism is documented "No documented emergency pause or kill switch in available sources".

Recommendation

Symbiotic demonstrates a strong code security foundation with professional auditing (4 Cyfrin audits, no critical/high issues) and substantial TVL ($469.7M), making it suitable for institutional participants seeking restaking infrastructure with solid technical fundamentals. However, the unfixed oracle vulnerability and precision loss issues represent meaningful economic risks that could affect voting outcomes during oracle failures. The anonymous team and governance opacity create trust assumptions that users must weigh. Suitable for risk-tolerant users seeking middleware infrastructure for restaking protocols. Users with low risk tolerance should wait for the oracle vulnerability and precision loss issues to be addressed, and for greater team transparency to be established. The middleware architecture means that any failure cascades to all dependent networks, increasing systemic importance.

Report Sections

Protocol Overview
Code Security
Economic Security
Social & Team
Governance
Cross-Risk Analysis

Vulnerability Findings

Medium6Low8Info16

Audit Reports (4)

Auditor	Tier	Status	Discovered	Link
Unknown	—	completed	1/1/1999	View ↗
Unknown	—	completed	1/1/1999	View ↗
Unknown	—	completed	1/1/1999	View ↗
Unknown	—	completed	1/1/1999	View ↗