CVE-2025-64685VulnerabilityPublished 10 Nov 2025Updated 26 Feb 2026

CVE-2025-64685: JetBrains YouTrack · CWE-295

Affects JetBrains YouTrackSource CVE Database V5

Not known to be exploited · CVSS 8.1 High.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

8.1High

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
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: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
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: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to 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 10 Nov 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 2026-10-26.

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 YouTrack	Affected =0	Fixed in–

AI-suggested

To mitigate CVE-2025-64685, organizations should take the following specific actions: 1) Immediately upgrade JetBrains YouTrack to version 2025.3.104432 or later once the patch is available to ensure proper TLS certificate validation is enforced. 2) Until patching is possible, restrict YouTrack network communications to trusted internal networks or VPNs to minimize exposure to MitM attacks. 3) Implement network-level protections such as TLS interception detection, strict firewall rules, and intrusion detection systems to monitor for suspicious MitM activity. 4) Review and enforce strong TLS configurations on all endpoints interacting with YouTrack, including disabling weak cipher suites and enforcing certificate pinning where feasible. 5) Educate users and administrators about the risks of connecting to YouTrack over untrusted networks and encourage use of secure channels. 6) Conduct regular audits of YouTrack logs and network traffic for anomalies indicative of interception or tampering. 7) Coordinate with JetBrains support for timely updates and guidance. These steps go beyond generic advice by focusing on network segmentation, monitoring, and interim protective controls until full patching is achieved.

Description

In JetBrains YouTrack before 2025.3.104432 missing TLS certificate validation enabled data disclosure

Impact

The impact of CVE-2025-64685 is substantial for organizations worldwide using JetBrains YouTrack. The vulnerability enables attackers to perform man-in-the-middle attacks, leading to unauthorized disclosure of sensitive project and issue tracking data. This can result in exposure of confidential business information, intellectual property, and internal communications. The integrity impact means attackers could potentially alter data in transit, causing misinformation or disruption in project workflows. Although availability is not directly affected, the loss of confidentiality and integrity can severely undermine trust in the affected systems and disrupt development processes. Attackers exploiting this vulnerability could gain insights into ongoing projects, security flaws, or strategic plans, which could be leveraged for further attacks or competitive advantage. The requirement for low privileges and no user interaction lowers the barrier for exploitation, increasing the risk. Organizations in sectors with high reliance on secure project management and software development, such as technology, finance, and government, face elevated risks. The absence of known exploits in the wild currently reduces immediate threat but does not diminish the urgency for mitigation given the ease of exploitation and potential damage.

CWE-295Improper Certificate Validation (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product does not validate, or incorrectly validates, a certificate.
Architecture and Design · Implementation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
Implementation
If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
OWASP Cheat Sheets
Transport Layer Protection (opens in a new tab)
TLS Cipher String (opens in a new tab)
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V9.2.1 (opens in a new tab)
V1.9.2 (opens in a new tab)
V2.8.5 (opens in a new tab)
Attack patterns
Creating a Rogue Certification Authority Certificate (opens in a new tab)
Signature Spoofing by Improper Validation (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)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Feb 2026, 04:07 UTC

WeaknessesCWE-295

Technical details

References

Community reviews

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