CVE-2021-25775Network attack vector

Cross-account access-token creation and disclosure

Published Feb 3, 2021 · Updated Aug 3, 2024

Improper authorization in JetBrains TeamCity before 2020.2.1 allows remote authenticated users with server-admin rights to access user tokens. JetBrains has not published the affected endpoint or the missing authorization operation that permits creating and viewing tokens assigned to other users. Exploitation requires server-administrator privileges and exposes reusable access tokens while also allowing new tokens to be issued for another account.

CVSS severity3.8
Low
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in JetBrains TeamCity before 2020.2.1 allows remote authenticated users with server-admin rights to access user tokens. JetBrains has not published the affected endpoint or the missing authorization operation that permits creating and viewing tokens assigned to other users. Exploitation requires server-administrator privileges and exposes reusable access tokens while also allowing new tokens to be issued for another account.

The record

CVE
CVE-2021-25775
Published
Feb 3, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1528
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 3, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
5.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1528Steal Application Access Token

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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