CVE-2025-61728

Description

archive/zip uses a super-linear file name indexing algorithm that is invoked the first time a file in an archive is opened. This can lead to a denial of service when consuming a maliciously constructed ZIP archive.

CVSS Metrics

• v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.04%• Percentile: 13%

Techniques & Countermeasures

• CWE-770•Allocation of Resources Without Limits or Throttling

  The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Affected Systems

• go standard library•archive/zip

  < 1.24.12 | ≥ 1.25.0, < 1.25.6

• golang•go

  < 1.24.12 | ≥ 1.25.0, < 1.25.6

• Go•stdlib

  ≥ 1.25.0, < 1.25.6

References (5)

• https://go.dev/cl/736713
• https://go.dev/issue/77102
• https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc
• https://pkg.go.dev/vuln/GO-2026-4342
• http://www.openwall.com/lists/oss-security/2026/01/15/4