CVE-2024-45719Network attack vector

Authorization-token prediction via UUIDv1 generation

Published Nov 22, 2024 · Updated Nov 22, 2024

Inadequate token generation in Apache Answer 1.4.0 and earlier allows remote authenticated users to predict authorization tokens. The GenerateToken function in internal/service/content uses time-based UUIDv1 values instead of cryptographically random identifiers, making its output guessable. A highly privileged remote user must induce another user to act; successful prediction enables use of that user's authorization token, with no reported data modification or service interruption.

CVSS severity2.6
Low
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inadequate token generation in Apache Answer 1.4.0 and earlier allows remote authenticated users to predict authorization tokens. The GenerateToken function in internal/service/content uses time-based UUIDv1 values instead of cryptographically random identifiers, making its output guessable. A highly privileged remote user must induce another user to act; successful prediction enables use of that user's authorization token, with no reported data modification or service interruption.

The record

CVE
CVE-2024-45719
Published
Nov 22, 2024
Updated
Nov 22, 2024
Vendor
The Apache Software Foundation
Product
Apache Answer
Classifications
CWE-326, T1550.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 22, 2024Record 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 <=1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Answerversion=0 <=1.4.0

Published CVSS scores

2.0GitHubCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
2.6CISA-ADPCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:N/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-326Inadequate Encryption Strength
T1550.001Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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