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Package Instance

Lookup for vulnerable packages by Package URL.

Purlpkg:deb/debian/flask@0.12.1-1
Typedeb
Namespacedebian
Nameflask
Version0.12.1-1
Qualifiers
Subpath
Is_vulnerabletrue
Next_non_vulnerable_version3.1.3-1
Latest_non_vulnerable_version3.1.3-1
Affected_by_vulnerabilities
0
url VCID-6f2e-66xz-t7cu
vulnerability_id VCID-6f2e-66xz-t7cu
summary 
Flask is a lightweight WSGI web application framework. When all of the following conditions are met, a response containing data intended for one client may be cached and subsequently sent by the proxy to other clients. If the proxy also caches `Set-Cookie` headers, it may send one client's `session` cookie to other clients. The severity depends on the application's use of the session and the proxy's behavior regarding cookies. The risk depends on all these conditions being met.

1. The application must be hosted behind a caching proxy that does not strip cookies or ignore responses with cookies.
2. The application sets `session.permanent = True`
3. The application does not access or modify the session at any point during a request.
4. `SESSION_REFRESH_EACH_REQUEST` enabled (the default).
5. The application does not set a `Cache-Control` header to indicate that a page is private or should not be cached.

This happens because vulnerable versions of Flask only set the `Vary: Cookie` header when the session is accessed or modified, not when it is refreshed (re-sent to update the expiration) without being accessed or modified. This issue has been fixed in versions 2.3.2 and 2.2.5.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-30861.json
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-30861.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2023-30861
reference_id
reference_type
scores
0
value 0.00192
scoring_system epss
scoring_elements 0.40934
published_at 2026-04-24T12:55:00Z
1
value 0.00192
scoring_system epss
scoring_elements 0.41029
published_at 2026-04-21T12:55:00Z
2
value 0.00192
scoring_system epss
scoring_elements 0.41104
published_at 2026-04-18T12:55:00Z
3
value 0.00192
scoring_system epss
scoring_elements 0.41133
published_at 2026-04-16T12:55:00Z
4
value 0.00192
scoring_system epss
scoring_elements 0.4109
published_at 2026-04-13T12:55:00Z
5
value 0.00192
scoring_system epss
scoring_elements 0.4114
published_at 2026-04-11T12:55:00Z
6
value 0.00192
scoring_system epss
scoring_elements 0.4112
published_at 2026-04-09T12:55:00Z
7
value 0.00192
scoring_system epss
scoring_elements 0.41113
published_at 2026-04-08T12:55:00Z
8
value 0.00192
scoring_system epss
scoring_elements 0.41064
published_at 2026-04-07T12:55:00Z
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value 0.00192
scoring_system epss
scoring_elements 0.41138
published_at 2026-04-04T12:55:00Z
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value 0.00192
scoring_system epss
scoring_elements 0.41106
published_at 2026-04-12T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2023-30861
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-30861
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-30861
3
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
4
reference_url https://github.com/pallets/flask
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/pallets/flask
5
reference_url https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b
6
reference_url https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965
7
reference_url https://github.com/pallets/flask/releases/tag/2.2.5
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://github.com/pallets/flask/releases/tag/2.2.5
8
reference_url https://github.com/pallets/flask/releases/tag/2.3.2
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://github.com/pallets/flask/releases/tag/2.3.2
9
reference_url https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
2
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
3
value HIGH
scoring_system generic_textual
scoring_elements
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq
10
reference_url https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2023-62.yaml
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2023-62.yaml
11
reference_url https://lists.debian.org/debian-lts-announce/2023/08/msg00024.html
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://lists.debian.org/debian-lts-announce/2023/08/msg00024.html
12
reference_url https://security.netapp.com/advisory/ntap-20230818-0006
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
url https://security.netapp.com/advisory/ntap-20230818-0006
13
reference_url https://www.debian.org/security/2023/dsa-5442
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
3
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://www.debian.org/security/2023/dsa-5442
14
reference_url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1035670
reference_id 1035670
reference_type
scores
url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1035670
15
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2196643
reference_id 2196643
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2196643
16
reference_url https://nvd.nist.gov/vuln/detail/CVE-2023-30861
reference_id CVE-2023-30861
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value 8.7
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
2
value HIGH
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2023-30861
17
reference_url https://github.com/advisories/GHSA-m2qf-hxjv-5gpq
reference_id GHSA-m2qf-hxjv-5gpq
reference_type
scores
0
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-m2qf-hxjv-5gpq
18
reference_url https://security.netapp.com/advisory/ntap-20230818-0006/
reference_id ntap-20230818-0006
reference_type
scores
0
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scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-30T16:29:21Z/
url https://security.netapp.com/advisory/ntap-20230818-0006/
19
reference_url https://access.redhat.com/errata/RHSA-2023:3440
reference_id RHSA-2023:3440
reference_type
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url https://access.redhat.com/errata/RHSA-2023:3440
20
reference_url https://access.redhat.com/errata/RHSA-2023:3444
reference_id RHSA-2023:3444
reference_type
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url https://access.redhat.com/errata/RHSA-2023:3444
21
reference_url https://access.redhat.com/errata/RHSA-2023:3446
reference_id RHSA-2023:3446
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:3446
22
reference_url https://access.redhat.com/errata/RHSA-2023:3525
reference_id RHSA-2023:3525
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:3525
23
reference_url https://access.redhat.com/errata/RHSA-2023:3536
reference_id RHSA-2023:3536
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:3536
24
reference_url https://access.redhat.com/errata/RHSA-2023:3541
reference_id RHSA-2023:3541
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:3541
25
reference_url https://access.redhat.com/errata/RHSA-2023:3545
reference_id RHSA-2023:3545
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:3545
26
reference_url https://access.redhat.com/errata/RHSA-2023:7341
reference_id RHSA-2023:7341
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:7341
27
reference_url https://usn.ubuntu.com/6111-1/
reference_id USN-6111-1
reference_type
scores
url https://usn.ubuntu.com/6111-1/
fixed_packages
0
url pkg:deb/debian/flask@1.1.2-2%2Bdeb11u1
purl pkg:deb/debian/flask@1.1.2-2%2Bdeb11u1
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-rx8q-6dwq-a3hs
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@1.1.2-2%252Bdeb11u1
aliases CVE-2023-30861, GHSA-m2qf-hxjv-5gpq, PYSEC-2023-62
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-6f2e-66xz-t7cu
1
url VCID-bmjp-tau8-bugq
vulnerability_id VCID-bmjp-tau8-bugq
summary The Pallets Project Flask before 1.0 is affected by: unexpected memory usage. The impact is: denial of service. The attack vector is: crafted encoded JSON data. The fixed version is: 1. NOTE: this may overlap CVE-2018-1000656.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-1010083.json
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-1010083.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
reference_id
reference_type
scores
0
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scoring_system epss
scoring_elements 0.60659
published_at 2026-04-21T12:55:00Z
1
value 0.00399
scoring_system epss
scoring_elements 0.60673
published_at 2026-04-18T12:55:00Z
2
value 0.00399
scoring_system epss
scoring_elements 0.60667
published_at 2026-04-16T12:55:00Z
3
value 0.00399
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published_at 2026-04-13T12:55:00Z
4
value 0.00399
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published_at 2026-04-12T12:55:00Z
5
value 0.00399
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published_at 2026-04-11T12:55:00Z
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published_at 2026-04-09T12:55:00Z
7
value 0.00399
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8
value 0.00399
scoring_system epss
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published_at 2026-04-07T12:55:00Z
9
value 0.00399
scoring_system epss
scoring_elements 0.60602
published_at 2026-04-04T12:55:00Z
10
value 0.00399
scoring_system epss
scoring_elements 0.60574
published_at 2026-04-02T12:55:00Z
11
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published_at 2026-04-01T12:55:00Z
12
value 0.00419
scoring_system epss
scoring_elements 0.61899
published_at 2026-04-24T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2019-1010083
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1010083
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1010083
3
reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
4
reference_url https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
2
value 8.7
scoring_system cvssv4
scoring_elements 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
3
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/advisories/GHSA-5wv5-4vpf-pj6m
5
reference_url https://github.com/pallets/flask
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value 8.7
scoring_system cvssv4
scoring_elements 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
2
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/pallets/flask
6
reference_url https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value 8.7
scoring_system cvssv4
scoring_elements 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
2
value HIGH
scoring_system generic_textual
scoring_elements
url https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2019-179.yaml
7
reference_url https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
value 8.7
scoring_system cvssv4
scoring_elements 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
2
value HIGH
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2019-1010083
8
reference_url https://www.palletsprojects.com/blog/flask-1-0-released
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1
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url pkg:deb/debian/flask@1.0.2-3
purl pkg:deb/debian/flask@1.0.2-3
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vulnerability VCID-6f2e-66xz-t7cu
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@1.0.2-3
aliases CVE-2019-1010083, GHSA-5wv5-4vpf-pj6m, PYSEC-2019-179
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-bmjp-tau8-bugq
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url VCID-y5ke-uj7u-rydk
vulnerability_id VCID-y5ke-uj7u-rydk
summary The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service. This attack appear to be exploitable via Attacker provides JSON data in incorrect encoding. This vulnerability appears to have been fixed in 0.12.3. NOTE: this may overlap CVE-2019-1010083.
references
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vulnerability VCID-6f2e-66xz-t7cu
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/flask@1.0.2-3
aliases CVE-2018-1000656, GHSA-562c-5r94-xh97, PYSEC-2018-66
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-y5ke-uj7u-rydk
Fixing_vulnerabilities
Risk_score4.0
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