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Purlpkg:rpm/redhat/tfm-rubygem-loofah@2.19.1-1?arch=el8sat
Typerpm
Namespaceredhat
Nametfm-rubygem-loofah
Version2.19.1-1
Qualifiers
arch el8sat
Subpath
Is_vulnerabletrue
Next_non_vulnerable_versionnull
Latest_non_vulnerable_versionnull
Affected_by_vulnerabilities
0
url VCID-6qdt-my8d-rkd5
vulnerability_id VCID-6qdt-my8d-rkd5
summary 
Uncontrolled Recursion in Loofah
## Summary

Loofah `>= 2.2.0, < 2.19.1` uses recursion for sanitizing `CDATA` sections, making it susceptible to stack exhaustion and raising a `SystemStackError` exception.  This may lead to a denial of service through CPU resource consumption.


## Mitigation

Upgrade to Loofah `>= 2.19.1`.

Users who are unable to upgrade may be able to mitigate this vulnerability by limiting the length of the strings that are sanitized.


## Severity

The Loofah maintainers have evaluated this as [High Severity 7.5 (CVSS3.1)](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).


## References

- [CWE - CWE-674: Uncontrolled Recursion (4.9)](https://cwe.mitre.org/data/definitions/674.html)
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-23516.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-2022-23516.json
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2022-23516
reference_id
reference_type
scores
0
value 0.00038
scoring_system epss
scoring_elements 0.11327
published_at 2026-04-09T12:55:00Z
1
value 0.00038
scoring_system epss
scoring_elements 0.11192
published_at 2026-04-07T12:55:00Z
2
value 0.00038
scoring_system epss
scoring_elements 0.11298
published_at 2026-04-12T12:55:00Z
3
value 0.00038
scoring_system epss
scoring_elements 0.11332
published_at 2026-04-11T12:55:00Z
4
value 0.00038
scoring_system epss
scoring_elements 0.11272
published_at 2026-04-13T12:55:00Z
5
value 0.00039
scoring_system epss
scoring_elements 0.11729
published_at 2026-04-04T12:55:00Z
6
value 0.00039
scoring_system epss
scoring_elements 0.11686
published_at 2026-04-02T12:55:00Z
7
value 0.0004
scoring_system epss
scoring_elements 0.12039
published_at 2026-04-18T12:55:00Z
8
value 0.0004
scoring_system epss
scoring_elements 0.12036
published_at 2026-04-16T12:55:00Z
9
value 0.0004
scoring_system epss
scoring_elements 0.12153
published_at 2026-04-21T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2022-23516
2
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23516
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23516
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/flavorjones/loofah
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 generic_textual
scoring_elements
url https://github.com/flavorjones/loofah
5
reference_url https://github.com/flavorjones/loofah/commit/86f7f6364491b0099d215db858ecdc0c89ded040
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 generic_textual
scoring_elements
url https://github.com/flavorjones/loofah/commit/86f7f6364491b0099d215db858ecdc0c89ded040
6
reference_url https://github.com/flavorjones/loofah/security/advisories/GHSA-3x8r-x6xp-q4vm
reference_id
reference_type
scores
0
value 7.5
scoring_system cvssv3
scoring_elements
1
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
2
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
3
value HIGH
scoring_system generic_textual
scoring_elements
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-04-18T18:19:29Z/
url https://github.com/flavorjones/loofah/security/advisories/GHSA-3x8r-x6xp-q4vm
7
reference_url https://github.com/rubysec/ruby-advisory-db/blob/master/gems/loofah/CVE-2022-23516.yml
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 generic_textual
scoring_elements
url https://github.com/rubysec/ruby-advisory-db/blob/master/gems/loofah/CVE-2022-23516.yml
8
reference_url https://lists.debian.org/debian-lts-announce/2023/09/msg00011.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:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
2
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-04-18T18:19:29Z/
url https://lists.debian.org/debian-lts-announce/2023/09/msg00011.html
9
reference_url https://lists.debian.org/debian-lts-announce/2024/09/msg00044.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:N/I:N/A:H
1
value HIGH
scoring_system generic_textual
scoring_elements
url https://lists.debian.org/debian-lts-announce/2024/09/msg00044.html
10
reference_url https://nvd.nist.gov/vuln/detail/CVE-2022-23516
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 generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2022-23516
11
reference_url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026083
reference_id 1026083
reference_type
scores
url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026083
12
reference_url https://bugzilla.redhat.com/show_bug.cgi?id=2153241
reference_id 2153241
reference_type
scores
url https://bugzilla.redhat.com/show_bug.cgi?id=2153241
13
reference_url https://github.com/advisories/GHSA-3x8r-x6xp-q4vm
reference_id GHSA-3x8r-x6xp-q4vm
reference_type
scores
0
value HIGH
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-3x8r-x6xp-q4vm
14
reference_url https://access.redhat.com/errata/RHSA-2023:2097
reference_id RHSA-2023:2097
reference_type
scores
url https://access.redhat.com/errata/RHSA-2023:2097
fixed_packages
aliases CVE-2022-23516, GHSA-3x8r-x6xp-q4vm, GMS-2022-8288
risk_score 4.0
exploitability 0.5
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-6qdt-my8d-rkd5
Fixing_vulnerabilities
Risk_score4.0
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:rpm/redhat/tfm-rubygem-loofah@2.19.1-1%3Farch=el8sat