How to fix CVE-2024-21669?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Vendor patch is available.

Is Python affected by CVE-2024-21669?

CVE-2024-21669 presents critical security risk, a signature bypass vulnerability rated CVSS 9.9. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems. Proof-of-concept code is publicly available, increasing the risk of exploitation.

CVE-2024-21669

CRITICAL

2024-01-11 [email protected]

9.9

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:34 vuln.today

Patch Released

Mar 28, 2026 - 19:34 nvd

Patch available

PoC Detected

Nov 21, 2024 - 08:54 vuln.today

Public exploit code

CVE Published

Jan 11, 2024 - 06:15 nvd

CRITICAL 9.9

Description

Hyperledger Aries Cloud Agent Python (ACA-Py) is a foundation for building decentralized identity applications and services running in non-mobile environments. When verifying W3C Format Verifiable Credentials using JSON-LD with Linked Data Proofs (LDP-VCs), the result of verifying the presentation `document.proof` was not factored into the final `verified` value (`true`/`false`) on the presentation record. The flaw enables holders of W3C Format Verifiable Credentials using JSON-LD with Linked Data Proofs (LDPs) to present incorrectly constructed proofs, and allows malicious verifiers to save and replay a presentation from such holders as their own. This vulnerability has been present since version 0.7.0 and fixed in version 0.10.5.

Analysis

Hyperledger Aries Cloud Agent Python (ACA-Py) is a foundation for building decentralized identity applications and services running in non-mobile environments. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical Context

This vulnerability is classified under CWE-347. Hyperledger Aries Cloud Agent Python (ACA-Py) is a foundation for building decentralized identity applications and services running in non-mobile environments. When verifying W3C Format Verifiable Credentials using JSON-LD with Linked Data Proofs (LDP-VCs), the result of verifying the presentation `document.proof` was not factored into the final `verified` value (`true`/`false`) on the presentation record. The flaw enables holders of W3C Format Verifiable Credentials using JSON-LD with Linked Data Proofs (LDPs) to present incorrectly constructed proofs, and allows malicious verifiers to save and replay a presentation from such holders as their own. This vulnerability has been present since version 0.7.0 and fixed in version 0.10.5. Affected products include: Hyperledger Aries Cloud Agent. Version information: version 0.7.0.

Affected Products

Hyperledger Aries Cloud Agent.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +50

POC: +20

CVE-2024-21669 vulnerability details – vuln.today

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CVE-2024-21669

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CVE-2024-21669

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Lifecycle Timeline

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Description

Analysis

Technical Context

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External POC / Exploit Code