JetBrains TeamCity up to 2025.03.3 Verification Token weak hash

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in JetBrains TeamCity. The impacted element is an unknown function of the component Verification Token Handler. The manipulation results in weak hash. This vulnerability is known as CVE-2025-54535. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in JetBrains TeamCity. It has been classified as problematic. Affected is an unknown function of the component Verification Token Handler. The manipulation with an unknown input leads to a weak hash vulnerability. CWE is classifying the issue as CWE-328. The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack). This is going to have an impact on confidentiality. CVE summarizes:

In JetBrains TeamCity before 2025.07 password reset and email verification tokens were using weak hashing algorithms

The advisory is shared for download at jetbrains.com. This vulnerability is traded as CVE-2025-54535 since 07/24/2025. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

The vulnerability scanner Nessus provides a plugin with the ID 243181 (JetBrains TeamCity < 2025.07 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2025.07 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (243181). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 5.8
CNA Vector (JetBrains): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Weak hash
CWE: CWE-328 / CWE-327 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 243181
Nessus Name: JetBrains TeamCity < 2025.07 Multiple Vulnerabilities

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: TeamCity 2025.07

Timelineinfo

07/24/2025 CVE reserved
07/28/2025 +4 days Advisory disclosed
07/28/2025 +0 days VulDB entry created
07/31/2025 +3 days VulDB entry last update

Sourcesinfo

Advisory: jetbrains.com
Status: Confirmed

CVE: CVE-2025-54535 (🔒)
GCVE (CVE): GCVE-0-2025-54535
GCVE (VulDB): GCVE-100-317940

Entryinfo

Created: 07/28/2025 19:34
Updated: 07/31/2025 10:20
Changes: 07/28/2025 19:34 (64), 07/30/2025 04:35 (12), 07/31/2025 10:20 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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