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Lookup for vulnerable packages by Package URL.

Purlpkg:golang/gopkg.in/yaml.v2@2.2.3
Typegolang
Namespacegopkg.in
Nameyaml.v2
Version2.2.3
Qualifiers
Subpath
Is_vulnerablefalse
Next_non_vulnerable_version2.2.4
Latest_non_vulnerable_version2.2.8
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-k874-59fj-9fcg
vulnerability_id VCID-k874-59fj-9fcg
summary 
YAML Go package vulnerable to denial of service
Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4235.json
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4235.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-4235
reference_id
reference_type
scores
0
value 0.00034
scoring_system epss
scoring_elements 0.09766
published_at 2026-04-21T12:55:00Z
1
value 0.00034
scoring_system epss
scoring_elements 0.09779
published_at 2026-04-26T12:55:00Z
2
value 0.00034
scoring_system epss
scoring_elements 0.09811
published_at 2026-04-24T12:55:00Z
3
value 0.00036
scoring_system epss
scoring_elements 0.10496
published_at 2026-04-29T12:55:00Z
4
value 0.00053
scoring_system epss
scoring_elements 0.16653
published_at 2026-04-04T12:55:00Z
5
value 0.00053
scoring_system epss
scoring_elements 0.16574
published_at 2026-04-11T12:55:00Z
6
value 0.00053
scoring_system epss
scoring_elements 0.16593
published_at 2026-04-09T12:55:00Z
7
value 0.00053
scoring_system epss
scoring_elements 0.16539
published_at 2026-04-08T12:55:00Z
8
value 0.00053
scoring_system epss
scoring_elements 0.16453
published_at 2026-04-07T12:55:00Z
9
value 0.00053
scoring_system epss
scoring_elements 0.16436
published_at 2026-04-18T12:55:00Z
10
value 0.00053
scoring_system epss
scoring_elements 0.16416
published_at 2026-04-16T12:55:00Z
11
value 0.00053
scoring_system epss
scoring_elements 0.16475
published_at 2026-04-13T12:55:00Z
12
value 0.00053
scoring_system epss
scoring_elements 0.16409
published_at 2026-04-01T12:55:00Z
13
value 0.00053
scoring_system epss
scoring_elements 0.1659
published_at 2026-04-02T12:55:00Z
14
value 0.00053
scoring_system epss
scoring_elements 0.16533
published_at 2026-04-12T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-4235
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4235
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4235
3
reference_url https://github.com/go-yaml/yaml
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/go-yaml/yaml
4
reference_url https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-11T16:24:34Z/
url https://github.com/go-yaml/yaml/commit/bb4e33bf68bf89cad44d386192cbed201f35b241
5
reference_url https://github.com/go-yaml/yaml/pull/375
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-11T16:24:34Z/
url https://github.com/go-yaml/yaml/pull/375
6
reference_url https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-11T16:24:34Z/
url https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html
7
reference_url https://nvd.nist.gov/vuln/detail/CVE-2021-4235
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2021-4235
8
reference_url https://pkg.go.dev/vuln/GO-2021-0061
reference_id
reference_type
scores
0
value 5.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1
value MODERATE
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-11T16:24:34Z/
url https://pkg.go.dev/vuln/GO-2021-0061
9
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2156727
reference_id 2156727
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2156727
10
reference_url https://access.redhat.com/errata/RHSA-2022:7398
reference_id RHSA-2022:7398
reference_type
scores
url https://access.redhat.com/errata/RHSA-2022:7398
11
reference_url https://access.redhat.com/errata/RHSA-2023:0569
reference_id RHSA-2023:0569
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:0569
12
reference_url https://access.redhat.com/errata/RHSA-2023:0570
reference_id RHSA-2023:0570
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:0570
13
reference_url https://access.redhat.com/errata/RHSA-2023:1326
reference_id RHSA-2023:1326
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:1326
14
reference_url https://access.redhat.com/errata/RHSA-2023:3615
reference_id RHSA-2023:3615
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:3615
15
reference_url https://access.redhat.com/errata/RHSA-2023:3742
reference_id RHSA-2023:3742
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:3742
16
reference_url https://usn.ubuntu.com/6287-1/
reference_id USN-6287-1
reference_type
scores
url https://usn.ubuntu.com/6287-1/
fixed_packages
0
url pkg:golang/gopkg.in/yaml.v2@2.2.3
purl pkg:golang/gopkg.in/yaml.v2@2.2.3
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:golang/gopkg.in/yaml.v2@2.2.3
aliases CVE-2021-4235, GHSA-r88r-gmrh-7j83
risk_score 3.1
exploitability 0.5
weighted_severity 6.2
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-k874-59fj-9fcg
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:golang/gopkg.in/yaml.v2@2.2.3