CVE-2021-41111Network attack vector

Cross-project webhook token disclosure via ID-only lookup

Published Feb 28, 2022 · Updated Apr 23, 2025

Authorization bypass in Rundeck before 3.3.15 and 3.4.0 through 3.4.4 allows remote authenticated users to read other projects' webhooks. WebhookController.get authorizes the project named in the request but formerly fetched the webhook by numeric ID alone, without verifying that the record belonged to that project. Read permission for webhooks in any project is sufficient to expose another project's definitions and tokens, which can then trigger the associated webhooks.

CVSS severity6.4
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Rundeck before 3.3.15 and 3.4.0 through 3.4.4 allows remote authenticated users to read other projects' webhooks. WebhookController.get authorizes the project named in the request but formerly fetched the webhook by numeric ID alone, without verifying that the record belonged to that project. Read permission for webhooks in any project is sufficient to expose another project's definitions and tokens, which can then trigger the associated webhooks.

The record

CVE
CVE-2021-41111
Published
Feb 28, 2022
Updated
Apr 23, 2025
Vendor
PagerDuty
Product
Rundeck
Classifications
CWE-639, T1528
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=< 3.3.15
  2. Affected versionversion=>= 3.4.0, < 3.4.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PagerDuty · Rundeckversion=< 3.3.15; version=>= 3.4.0, < 3.4.5

Published CVSS scores

5.5NISTAV:N/AC:L/Au:S/C:P/I:P/A:N
6.4GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.4NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1528Steal Application 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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