VulnerabilityPublished 3 Oct 2025Updated 6 Oct 2025

CVE-2025-61685: mastra · Exposure of Information Through Directory Listing

Affects mastraSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium · fixed in 0.13.20 : update mastra when convenient.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.5% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 0.13.20

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
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: 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: 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 3 Oct 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 26 Oct 2026.

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 or the CVSS exploit maturity 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

AI-suggested

To mitigate CVE-2025-61685, European organizations should take the following specific actions: 1) Immediately upgrade all instances of the mastra framework to version 0.13.20 or later, where the vulnerability is fixed. 2) Conduct an inventory of all systems running vulnerable mastra versions to ensure comprehensive patching. 3) Restrict network access to services running mastra to trusted internal networks or VPNs to reduce exposure to remote attackers. 4) Implement strict access controls and least privilege principles for users and services interacting with mastra to limit the ability of attackers to exploit the vulnerability. 5) Monitor logs and network traffic for unusual directory listing requests or patterns indicative of reconnaissance attempts. 6) If upgrading is not immediately feasible, consider deploying web application firewalls (WAFs) or intrusion detection systems (IDS) with custom rules to detect and block directory traversal attempts targeting mastra endpoints. 7) Educate developers and system administrators about secure coding practices to avoid similar logic bypasses in path validation. 8) Regularly review and audit filesystem permissions to minimize sensitive data exposure even if directory listings occur.

Description

Mastra is a Typescript framework for building AI agents and assistants. Versions 0.13.8 through 0.13.20-alpha.0 are vulnerable to a Directory Traversal attack that results in the disclosure of directory listings. The code contains a security check to prevent path traversal for reading file contents, but this check is effectively bypassed by subsequent logic that attempts to find directory suggestions. An attacker can leverage this flaw to list the contents of arbitrary directories on the user's filesystem, including the user's home directory, exposing sensitive information about the file system's structure. This issue is fixed in version 0.13.20.

Impact

For European organizations, the primary impact of CVE-2025-61685 is the unauthorized disclosure of directory structures and potentially sensitive file information on systems running vulnerable versions of the mastra framework. This exposure can facilitate reconnaissance activities by attackers, enabling them to identify critical files, configuration data, or user information that could be leveraged in subsequent attacks such as privilege escalation, data exfiltration, or targeted malware deployment. Organizations involved in AI development or deploying AI assistants using mastra are at risk of having their internal file system layouts exposed, which could compromise intellectual property or user privacy. Although the vulnerability does not directly allow data modification or service disruption, the confidentiality breach can undermine trust and compliance with data protection regulations such as GDPR. The risk is heightened in environments where mastra is deployed on shared or multi-tenant systems, or where access controls are insufficient. Additionally, attackers exploiting this vulnerability remotely with low privileges and no user interaction increases the threat surface for European enterprises relying on this framework.

CWE-548Exposure of Information Through Directory Listing (opens in a new tab)
Variant weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product inappropriately exposes a directory listing with an index of all the resources located inside of the directory.
Architecture and Design · System Configuration
Recommendations include restricting access to important directories or files by adopting a need to know requirement for both the document and server root, and turning off features such as Automatic Directory Listings that could expose private files and provide information that could be utilized by an attacker when…
OWASP Cheat Sheets
REST Assessment (opens in a new tab)
Error Handling (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V4.3.2 (opens in a new tab)
V8.3.4 (opens in a new tab)
V14.3.2 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 11 Oct 2025, 00:16 UTC

WeaknessesCWE-548

Technical details

References

Community reviews

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