VDB
ALPINE-CVE-2026-27171
ALPINE-CVE-2026-27171
PUBLISHED
CVSS 5.5 MEDIUM
zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | zlib | 1.2.11-r2, 1.2.7-r0, 1.2.6-r0 |
| Alpine:v3.24 | zlib | 1.2.12 |
| Alpine:v3.20 | zlib | 1.2.7-r0, 1.2.7-r1, 1.2.8-r0 |
| Alpine:v3.22 | zlib | 1.2.12, 1.2.10-r0, 1.2.11-r0 |
| Alpine:v3.21 | zlib | 1.2.11-r2, 1.2.12, 1.3.1-r2 |
Timeline
- Feb 18, 2026 CVE Published
- Apr 30, 2026 Distribution Patch
- Jul 8, 2026 CVE Updated