CVE-2025-58157Public exploitNetwork attack vector

Prover hang via nonconverging fake-GLV decomposition

Published Aug 29, 2025 · Updated Sep 2, 2025

Denial of service in Consensys gnark 0.12.0 allows remote attackers to hang a prover by supplying an untrusted witness. The fake-GLV scalar-multiplication hint passes certain near-order scalars to gnark-crypto's Eisenstein Half-GCD decomposition, which enters a very slowly converging loop. A prover must accept attacker-controlled witness values, and the resulting computation consumes time without completing.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Consensys gnark 0.12.0 allows remote attackers to hang a prover by supplying an untrusted witness. The fake-GLV scalar-multiplication hint passes certain near-order scalars to gnark-crypto's Eisenstein Half-GCD decomposition, which enters a very slowly converging loop. A prover must accept attacker-controlled witness values, and the resulting computation consumes time without completing.

The record

CVE
CVE-2025-58157
Published
Aug 29, 2025
Updated
Sep 2, 2025
Vendor
Consensys
Product
gnark
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion== 0.12.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Consensys · gnarkversion== 0.12.0

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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