CVE-2026-79771

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Source
https://cve.org/CVERecord?id=CVE-2026-79771
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-79771.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-79771
Aliases
Downstream
Published
2026-08-25T15:16:03.736Z
Modified
2026-08-27T11:47:41.313838388Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Nokogiri before 1.19.3 Memory Leak via XSLT Transform
Details

Nokogiri versions before 1.19.3 contain a memory leak in the XSLT Stylesheet transform method when processing Ruby strings containing null bytes. Attackers can exploit this by passing attacker-controlled input with null bytes to transform parameters, causing heap allocations to leak and enabling denial of service against long-running processes.

Database specific 
{
    "cwe_ids": [
        "CWE-401"
    ],
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79771.json"
}
References

Affected packages

Git / github.com/sparklemotion/nokogiri

Affected ranges

Type
GIT
Repo
https://github.com/sparklemotion/nokogiri
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c139a3da0fe0cae7499a0bafa20f2875877c585b
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.19.3"
        }
    ]
}

Affected versions

1.*
1.7.0.1-linux-binary1
REL_1.*
REL_1.0.0
REL_1.0.1
REL_1.0.2
REL_1.0.3
REL_1.0.4
REL_1.0.5
REL_1.0.6
REL_1.0.7
REL_1.5.0.beta.1
REL_1.5.0.beta.2
v1.*
v1.10.0
v1.10.0.rc1
v1.10.1
v1.10.2
v1.10.3
v1.11.0
v1.11.0.rc1
v1.11.0.rc2
v1.11.0.rc3
v1.11.0.rc4
v1.11.1
v1.11.2
v1.11.3
v1.12.0
v1.12.0.rc1
v1.12.1
v1.12.2
v1.12.3
v1.13.0
v1.14.0
v1.14.0.rc1
v1.14.1
v1.15.0
v1.15.1
v1.15.2
v1.16.0
v1.16.0.rc1
v1.17.0
v1.18.0
v1.18.0.rc1
v1.18.1
v1.18.10
v1.18.2
v1.18.3
v1.18.4
v1.18.5
v1.18.6
v1.18.7
v1.18.8
v1.18.9
v1.19.0
v1.19.1
v1.19.2
v1.5.0
v1.5.0.beta.3
v1.5.0.beta.4
v1.5.1
v1.5.1.rc1
v1.5.2
v1.5.3
v1.5.3.rc1
v1.5.3.rc3
v1.5.3.rc4
v1.5.3.rc5
v1.5.3.rc6
v1.5.4.rc1
v1.5.4.rc2
v1.5.4.rc3
v1.5.5.rc1
v1.5.5.rc2
v1.5.6
v1.5.6.rc2
v1.5.7
v1.5.7.rc1
v1.5.7.rc2
v1.5.7.rc3
v1.5.8
v1.5.9
v1.6.0
v1.6.0.rc1
v1.6.2
v1.6.2.1
v1.6.2.beta.1
v1.6.2.rc1
v1.6.2.rc3
v1.6.3
v1.6.3.1
v1.6.3.rc1
v1.6.3.rc2
v1.6.3.rc3
v1.6.4
v1.6.5
v1.6.6
v1.6.6.1
v1.6.6.2
v1.6.7.rc1
v1.6.7.rc2
v1.6.7.rc3
v1.6.7.rc4
v1.6.8
v1.6.8.rc1
v1.6.8.rc2
v1.6.8.rc3
v1.7.0
v1.7.0.1
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.9.0
v1.9.0.rc1
v1.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-79771.json"