CVE-2026-27171

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Source
https://cve.org/CVERecord?id=CVE-2026-27171
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27171.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-27171
Downstream
Related
Published
2026-02-18T04:16:01.263Z
Modified
2026-03-23T05:12:42.910503Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.

References

Affected packages

Git / github.com/madler/zlib

Affected ranges

Type
GIT
Repo
https://github.com/madler/zlib
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
da607da739fa6047df13e66a2af6b8bec7c2a498
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.3.2"
        }
    ]
}

Affected versions

v0.*
v0.71
v0.79
v0.8
v0.9
v0.91
v0.92
v0.93
v0.94
v0.95
v0.99
v1.*
v1.0-pre
v1.0.1
v1.0.2
v1.0.4
v1.0.5
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.1.4
v1.2.0
v1.2.0.1
v1.2.0.2
v1.2.0.3
v1.2.0.4
v1.2.0.5
v1.2.0.6
v1.2.0.7
v1.2.0.8
v1.2.1
v1.2.1.1
v1.2.1.2
v1.2.10
v1.2.11
v1.2.12
v1.2.13
v1.2.2
v1.2.2.1
v1.2.2.2
v1.2.2.3
v1.2.2.4
v1.2.3
v1.2.3.1
v1.2.3.2
v1.2.3.3
v1.2.3.4
v1.2.3.5
v1.2.3.6
v1.2.3.7
v1.2.3.8
v1.2.3.9
v1.2.4
v1.2.4-pre1
v1.2.4-pre2
v1.2.4.1
v1.2.4.2
v1.2.4.3
v1.2.4.4
v1.2.4.5
v1.2.5
v1.2.5.1
v1.2.5.2
v1.2.5.3
v1.2.6
v1.2.6.1
v1.2.7
v1.2.7.1
v1.2.7.2
v1.2.7.3
v1.2.8
v1.2.9
v1.3
v1.3.1
v1.3.1.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27171.json"