Cyber Resilience

CVE-2025-67740

Access Control in Jetbrains Teamcity ≤ 2025.11

Access Control
Published
11 December 2025
Modified
15 December 2025
Patch / advisory
View advisory
CVSS Score v3.1 2.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0019 9th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2025-67740 is a low-severity Incorrect Authorization (CWE-863) vulnerability in Jetbrains Teamcity. Its CVSS base score is 2.7 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steal Application Access Token (T1528); ranked at the 9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

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

CWE(s)
CWE-863

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1528 Steal Application Access Token Credential Access
Adversaries can steal application access tokens as a means of acquiring credentials to access remote systems and resources.
attack.mitre.org →
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
attack.mitre.org →
Why these techniques?

Improper access control directly enables exposure of application tokens/metadata (T1528) and unsecured credentials (T1552).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-49376Same product: Jetbrains Teamcity
CVE-2024-36364Same product: Jetbrains Teamcity
CVE-2024-56350Same product: Jetbrains Teamcity
CVE-2025-24460Same product: Jetbrains Teamcity
CVE-2025-54533Same product: Jetbrains Teamcity
CVE-2023-34218Same product: Jetbrains Teamcity
CVE-2024-36376Same product: Jetbrains Teamcity
CVE-2024-28174Same product: Jetbrains Teamcity
CVE-2024-36365Same product: Jetbrains Teamcity
CVE-2024-56348Same product: Jetbrains Teamcity

Affected Assets

jetbrains
teamcity
≤ 2025.11

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AC-6 Least Privilege
  • AC-4 Information Flow Enforcement
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 5 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

AC-3 Access Enforcement good match
prevent

Directly enforces authorization checks to block unauthorized access to GitHub App token metadata.

AC-6 Least Privilege good match
prevent

Limits privileges so that only authorized subjects can reach token metadata objects.

AC-4 Information Flow Enforcement partial match
prevent

Enforces information-flow rules that would stop metadata from being returned to unauthorized callers.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 mostly match
prevents

Defining, enforcing, and reviewing access authorizations and least privilege directly prevents incorrect authorization checks.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.15 Access control partial match
prevents

Requiring consistency between access rights and classification plus formal approval steps ensures that the authorization logic correctly distinguishes between entities that should and should not be granted access.

A.5.18 Access rights partial match
prevents

Enforcing policy-driven approval and role-change reviews stops incorrect or stale authorization decisions from remaining in effect after job changes or terminations.

A.8.3 Information access restriction partial match
prevents

By tying access rights to identity, device, location and classification, the control reduces the likelihood that an authorization decision will be based on an incorrect or bypassed policy.

References