Improper Handling of Insufficient Permissions or Privileges Affecting deno_io package, versions <0.128.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RUST-DENOIO-13428058
- published8 Oct 2025
- disclosed7 Oct 2025
- creditAlessio Della Libera
Introduced: 7 Oct 2025
NewCVE-2025-61785 (opens in a new tab)How to fix?
Upgrade deno_io to version 0.128.0 or higher.
Overview
deno_io is a crate that provides IO primitives for other Deno extensions, this includes stdio streams and abstraction over File System files.
Affected versions of this package are vulnerable to Improper Handling of Insufficient Permissions or Privileges via the utime and utimeSync functions. An attacker can modify file access and modification timestamps by invoking these functions on file streams opened with read-only permissions, even when write operations are explicitly denied through permission flags.