CVE-2026-41505Network attack vector

Account takeover and exam access via predictable tokens

Published May 7, 2026 · Updated May 7, 2026

Predictable token generation in inducer RELATE 2024.1 and earlier allows remote attackers to take over accounts or access exams. make_sign_in_key() hashes an email, the current time, and output from Python's Mersenne Twister, while gen_ticket_code() selects eight characters with the same noncryptographic PRNG. Exploitation requires observing enough PRNG output to predict future password-reset, sign-in, API, or exam-ticket tokens; successful prediction grants the associated account or exam access.

CVSS severity8.7
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Predictable token generation in inducer RELATE 2024.1 and earlier allows remote attackers to take over accounts or access exams. make_sign_in_key() hashes an email, the current time, and output from Python's Mersenne Twister, while gen_ticket_code() selects eight characters with the same noncryptographic PRNG. Exploitation requires observing enough PRNG output to predict future password-reset, sign-in, API, or exam-ticket tokens; successful prediction grants the associated account or exam access.

The record

CVE
CVE-2026-41505
Published
May 7, 2026
Updated
May 7, 2026
Vendor
inducer
Product
RELATE
Classifications
CWE-338, T1550
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 2026Record 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=< 2f68e16cd3b96d25c188c1aa3f7e13cdb15cdaeb

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

inducer · RELATEversion=< 2f68e16cd3b96d25c188c1aa3f7e13cdb15cdaeb

Published CVSS scores

8.7GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
T1550Use Alternate Authentication Material

Public exploit references

No public exploit references are available in this record.

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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