CVE-2024-41827Network attack vector

Persistent account access via invalidated tokens

Published Jul 22, 2024 · Updated Aug 2, 2024

Insufficient token expiration in JetBrains TeamCity before 2024.07 allows remote attackers to retain access with deleted or expired tokens. The access-token validation path continues accepting a token after deletion or expiration; JetBrains has not identified the responsible function. Exploitation requires possession of a formerly valid token and preserves its associated account permissions after the intended authorization ends.

CVSS severity7.4
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Insufficient token expiration in JetBrains TeamCity before 2024.07 allows remote attackers to retain access with deleted or expired tokens. The access-token validation path continues accepting a token after deletion or expiration; JetBrains has not identified the responsible function. Exploitation requires possession of a formerly valid token and preserves its associated account permissions after the intended authorization ends.

The record

CVE
CVE-2024-41827
Published
Jul 22, 2024
Updated
Aug 2, 2024
Vendor
JetBrains
Product
TeamCity
Classifications
CWE-613, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2024.07

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · TeamCityversion=0 <2024.07

Published CVSS scores

7.4JetBrainsCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-613Insufficient Session Expiration
T1078Valid Accounts

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo