CVE-2021-47996

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Source
https://cve.org/CVERecord?id=CVE-2021-47996
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47996.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-47996
Aliases
Published
2026-08-25T16:16:42.930Z
Modified
2026-08-27T19:34:09.160252Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Nokogiri before 1.11.4 (CRuby implementation only, when the packaged/vendored libxml2 is used) bundles libxml2 2.9.10, which is affected by multiple vulnerabilities addressed in libxml2 2.9.12, including a memory leak in xmlSchemaValidateStream (CVE-2019-20388), a global buffer over-read in xmlEncodeEntitiesInternal (CVE-2020-24977), a heap-based buffer overflow (CVE-2021-3517), and an out-of-bounds read (CVE-2021-3518). Processing crafted XML documents may lead to denial of service, information disclosure, or memory corruption.

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
9d69b44ed3357b8069856083d39ee418cd10109b
Database specific
Show details 
{
    "source": "DESCRIPTION",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.11.4"
        }
    ]
}

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
v1.5.0
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-2021-47996.json"