CVE-2024-51491Public exploit

Signature-verification crash via cross-filesystem cache rename

Published Jan 13, 2025 · Updated Jan 14, 2025

Improper exception handling in Notary Project notation-go 1.3.0-rc.1 allows local users to crash signature verification during CRL checks. The crl.(*FileCache).Set method creates a cache file in the system temporary directory, then passes it to os.Rename across filesystems without handling the resulting EXDEV error. The crash requires a separate temporary-file mount and a CRL-only revocation path, and it aborts signature verification without affecting confidentiality or integrity.

CVSS severity3.3
Low
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper exception handling in Notary Project notation-go 1.3.0-rc.1 allows local users to crash signature verification during CRL checks. The crl.(*FileCache).Set method creates a cache file in the system temporary directory, then passes it to os.Rename across filesystems without handling the resulting EXDEV error. The crash requires a separate temporary-file mount and a CRL-only revocation path, and it aborts signature verification without affecting confidentiality or integrity.

The record

CVE
CVE-2024-51491
Published
Jan 13, 2025
Updated
Jan 14, 2025
Vendor
Notary Project
Product
notation-go
Classifications
CWE-703, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 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?

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  1. Affected versionversion== 1.3.0-rc.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Notary Project · notation-goversion== 1.3.0-rc.1

Published CVSS scores

3.3GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-703Improper Check or Handling of Exceptional Conditions
T1499.004Application or System Exploitation

Public exploit references

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Technologies

Your stack

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Your stack

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