CVE-2025-67740VulnerabilityPublished 11 Dec 2025

CVE-2025-67740: JetBrains TeamCity · CWE-863

Affects JetBrains TeamCitySource CVE Database V5

Not known to be exploited · CVSS 2.7 Low.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

2.7Low

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: High: The attacker is authorized with (i.e., requires) privileges that provide significant (e.g., administrative) control over the vulnerable component that could affect component-wide settings and files.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
JetBrains TeamCity	Affected =0	Fixed in–

AI-suggested

To mitigate CVE-2025-67740, European organizations should implement the following specific measures: 1) Restrict high-privilege access within TeamCity to only essential personnel, enforcing the principle of least privilege to minimize exposure. 2) Monitor and audit access logs for unusual or unauthorized attempts to access GitHub App token metadata, enabling early detection of potential misuse. 3) Segregate duties within the CI/CD environment to prevent a single user from having excessive control or visibility over sensitive tokens. 4) Apply network segmentation and access controls to limit which users and systems can communicate with TeamCity servers. 5) Stay informed about JetBrains security advisories and promptly apply patches or updates once available. 6) Consider rotating GitHub App tokens periodically and reviewing token scopes to minimize potential damage from any exposure. 7) Implement multi-factor authentication (MFA) for all high-privilege accounts to reduce the risk of credential compromise. These targeted actions go beyond generic advice by focusing on access control hardening, monitoring, and operational security practices specific to the vulnerability context.

Description

In JetBrains TeamCity before 2025.11 improper access control could expose GitHub App token's metadata

Impact

For European organizations, the impact of CVE-2025-67740 is relatively limited due to the low severity and the requirement for high privileges to exploit the vulnerability. However, organizations relying heavily on JetBrains TeamCity for their software development lifecycle could face risks related to information disclosure. Exposure of GitHub App token metadata might enable attackers or malicious insiders to better understand token usage and scope, potentially aiding in crafting more targeted attacks or privilege escalation attempts. This could indirectly affect the confidentiality of source code repositories or disrupt development workflows if leveraged in a broader attack chain. Given the critical role of CI/CD pipelines in modern software delivery, any compromise or information leakage could have downstream effects on software integrity and release processes. European organizations with stringent data protection regulations, such as GDPR, should consider the implications of any unauthorized data exposure, even if limited to metadata. The absence of known exploits reduces immediate risk, but the vulnerability should be addressed proactively to maintain secure development environments.

CWE-863Incorrect Authorization (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #17OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Architecture and Design
Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries.
Architecture and Design
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
V7.2.2 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

jetbrains.com/privacy-security/issues-fixed/ (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 11 Dec 2025, 15:54 UTC

WeaknessesCWE-863

Technical details

References

Community reviews

Related threats