🛡️ CVE-2025-67124 — miniserve

🟡 CVSS 6.8 — Medium ⚠️ Exploit Public CWE-367 OSV
6.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

miniserve affected by a TOCTOU and symlink race vulnerability

A TOCTOU and symlink race in svenstaro/miniserve 0.32.0 upload finalization (when uploads are enabled) can allow an attacker to overwrite arbitrary files outside the intended upload/document root in deployments where the attacker can create/replace filesystem entries in the upload destination directory (e.g., shared writable directory/volume).

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity low, availability none.

Weakness class

CVE-2025-67124 is classified as CWE-367: Time-of-check Time-of-use Race Condition. The state checked and the state acted upon can differ, because it may change between the two steps.

Affected software

CVE-2025-67124 is recorded against 1 package.

  • miniserve

Timeline and source

Published on 23 January 2026 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
gist.github.com (Web)
github.com (Package)

Details

Severity MEDIUM
CVSS Score 6.8
CVSS Vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CWE CWE-367
Public Exploit ⚠️ Yes
Source OSV
Published 2026-01-23
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
miniserve — —

Similar Threats

Exploit Protection

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CVE-2025-67124 carries CVSS 6.8 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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