CVE-2026-86485 Vulnerability Analysis & Exploit Details

CVE-2026-86485
Vulnerability Scoring

3.3
/10
Moderate Risk

Exploiting CVE-2026-86485 requires specific conditions, leading to a moderate security impact.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2026-86485 Details

Status: Deferred

Last updated: 🕞 08 Sep 2026, 15:30 UTC
Originally published on: 🕔 07 Sep 2026, 17:17 UTC

CVSS Release: version 3

CVSS3 Source

cve@jetbrains.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-86485 Vulnerability Summary

CVE-2026-86485: In JetBrains YouTrack before 2026.2.18634 iP spoofing via HTTP headers allowed forged Bitbucket webhooks

Assessing the Risk of CVE-2026-86485

Access Complexity Graph

The exploitability of CVE-2026-86485 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-86485

With low attack complexity and no required privileges, CVE-2026-86485 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-86485, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-86485, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2026-86485 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: None
    CVE-2026-86485 poses no threat to data integrity.
  • Availability: None
    CVE-2026-86485 does not impact system availability.

CVE-2026-86485 References

External References

CWE Common Weakness Enumeration

CWE-291

CAPEC Common Attack Pattern Enumeration and Classification

  • Using Alternative IP Address Encodings CAPEC-4 This attack relies on the adversary using unexpected formats for representing IP addresses. Networked applications may expect network location information in a specific format, such as fully qualified domains names (FQDNs), URL, IP address, or IP Address ranges. If the location information is not validated against a variety of different possible encodings and formats, the adversary can use an alternate format to bypass application access control.

Protect Your Infrastructure against CVE-2026-86485: Combat Critical CVE Threats

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