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.
References (5)
Core 5
Core References
Patch
https://go.dev/cl/736713
Vendor Advisory
https://pkg.go.dev/vuln/GO-2026-4342
Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/01/15/4
Scores
CVSS v3
6.5
EPSS
0.0064
EPSS Percentile
45.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-770
Status
published
Products (1)
golang/go
< 1.24.12
Published
Jan 28, 2026
Tracked Since
Feb 18, 2026