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
ALPINE (1)
AZL (17)
BELL (1)
CGA (4)
CLEANSTART (2)
DEBIAN (1)
ECHO (1)
JLSEC (1)
MGASA (1)
MINI (1)
OESA (10)
openSUSE (2)
ROOT (3)
SUSE (5)
UBUNTU (1)
Related
CGA (1)
openSUSE (2)
SUSE (5)
Published
2026-02-18T02:36:19Z
Modified
2026-08-12T03:51:33Z
Severity
  • 2.9 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "cna_assigner":  "mitre",
    "cwe_ids":  [
        "CWE-1284"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27171.json"
}
References

Affected packages

Git / github.com/madler/zlib

Affected ranges

Type
GIT
Repo
https://github.com/madler/zlib
Events
Introduced
21767c654d31d2dccdde4330529775c6c5fd5389
Fixed
da607da739fa6047df13e66a2af6b8bec7c2a498
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:zlib:zlib:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.3.2"
        },
        {
            "introduced":  "1.2.12"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.2.12
v1.2.13
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"