CVE-2021-28834
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-28834
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28834.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-28834
- Aliases
- Downstream
- Related
- Published
- 2021-03-19T07:15:13.147Z
- Modified
- 2025-12-05T21:10:25.313868Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
- References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/
- https://github.com/gettalong/kramdown/compare/REL_2_3_0...REL_2_3_1
- https://github.com/gettalong/kramdown/pull/708
- https://gitlab.com/gitlab-org/gitlab/-/commit/179329b5c3c118924fb242dc449d06b4ed6ccb66
- https://www.debian.org/security/2021/dsa-4890
Affected packages
Git / github.com/gettalong/kramdown
Affected ranges
- Type
- GIT
- Repo
- https://github.com/gettalong/kramdown
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
Other
REL_0_10_0
REL_0_11_0
REL_0_12_0
REL_0_13_1
REL_0_13_2
REL_0_13_3
REL_0_13_4
REL_0_13_5
REL_0_13_6
REL_0_13_7
REL_0_13_8
REL_0_14_0
REL_0_14_1
REL_0_14_2
REL_0_1_0
REL_0_1_0_0
REL_0_1_0_1
REL_0_2_0
REL_0_3_0
REL_0_4_0
REL_0_5_0
REL_0_6_0
REL_0_7_0
REL_0_8_0
REL_0_9_0
REL_1_0_0
REL_1_0_1
REL_1_0_2
REL_1_10_0
REL_1_11_0
REL_1_11_1
REL_1_12_0
REL_1_13_0
REL_1_13_1
REL_1_13_2
REL_1_14_0
REL_1_15_0
REL_1_16_0
REL_1_16_1
REL_1_16_2
REL_1_17_0
REL_1_1_0
REL_1_2_0
REL_1_3_0
REL_1_3_1
REL_1_3_2
REL_1_3_3
REL_1_4_0
REL_1_4_1
REL_1_4_2
REL_1_5_0
REL_1_6_0
REL_1_7_0
REL_1_8_0
REL_1_9_0
REL_2_0_0
REL_2_1_0
REL_2_2_0
REL_2_2_1
REL_2_3_0
Git / gitlab.com/gitlab-org/gitlab
Affected ranges
- Type
- GIT
- Repo
- https://gitlab.com/gitlab-org/gitlab
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
Other
11-10-0cfa69752d8-0d9531c80-ee
11-10-0cfa69752d8-74ffd66ae-ee
11-10-119f9509d50-6d7537235-ee
v1.*
v1.0.2
v1.1.0pre
v1.2.0
v1.2.0pre
v1.2.1
v1.2.2
v10.*
v10.1.0.pre
v10.2.0.pre
v10.3.0.pre
v10.4.0.pre
v10.5.0.pre
v10.6.0.pre
v10.7.0.pre
v10.8.0.pre
v10.9.0.pre
v11.*
v11.0.0.pre
v11.1.0.pre
v11.2.0.pre
v11.3.0.pre
v13.*
v13.9.0-ee
v13.9.0-rc42-ee
v13.9.0-rc43-ee
v13.9.1-ee
v13.9.2-ee
v13.9.3-ee
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.2.0pre
v2.3.0
v2.3.0pre
v2.3.1
v2.4.0
v2.4.0pre
v2.4.1
v2.5.0
v2.6.0
v2.6.0pre
v2.6.1
v2.6.2
v2.6.3
v2.7.0
v2.7.0pre
v2.8.0
v2.8.0pre
v2.8.1
v2.8.2
v2.9.0
v2.9.1
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.1.0
v4.*
v4.0.0
v4.0.0rc1
v4.0.0rc2
v5.*
v5.0.0
v5.1.0
v5.2.0
v5.3.0
v6.*
v6.0.0
v6.0.0-ee
v6.0.0-ee.beta
v6.0.0-ee.rc1
v6.1.0-ee
v6.2.0
v6.2.1
v6.2.2
v6.3.0
v6.3.0-ee
v6.3.1-ee
v6.4.0
v6.4.0-ee
v6.4.0.pre1
v6.4.0.pre2
v6.4.0.pre3
v6.4.1
v6.4.2
v6.4.3
v6.5.0
v6.5.0-ee
v6.5.0.rc1
v6.5.1
v6.6.0
v6.6.0-ee
v6.6.0.pre1
v6.6.0.rc1
v6.6.1
v6.6.2
v6.7.0-ee
v6.7.0.rc1
v6.7.0.rc1-ee
v6.7.1
v6.7.2
v6.8.0
v6.8.0-ee
v6.8.0.rc1
v6.8.1
v6.9.0.rc1
v7.*
v7.0.0
v7.0.0-ee
v7.0.0.rc1
v7.1.0
v7.1.0-ee
v7.1.0.rc1
v7.1.0.rc1-ee
v7.2.0.rc1
v7.2.0.rc1-ee
v7.2.0.rc2
v7.2.0.rc2-ee
v7.2.0.rc3
v7.2.0.rc3-ee
v7.2.0.rc4
v7.2.0.rc4-ee
v7.2.0.rc5
v7.2.0.rc5-ee
v7.3.0
v7.3.0-ee
v7.3.0.rc1
v7.3.0.rc1-ee
v7.4.0
v7.4.0-ee
v7.4.1
v7.4.1-ee
v7.4.2
v7.4.2-ee
v7.4.3
v7.4.3-ee
v7.4.4-ee
v8.*
v8.10.0.pre
v8.11.0
v8.11.0-ee
v8.11.0-rc1
v8.11.0-rc1-ee
v8.11.0-rc2
v8.11.0-rc2-ee
v8.11.0-rc3
v8.11.0-rc3-ee
v8.11.0-rc4
v8.11.0-rc4-ee
v8.11.0-rc5
v8.11.0-rc5-ee
v8.11.0-rc6
v8.11.0-rc6-ee
v8.11.0-rc7
v8.11.0-rc7-ee
v8.11.0.pre
v8.11.1
v8.12.0
v8.12.0-ee
v8.12.0-rc1
v8.12.0-rc1-ee
v8.12.0-rc2
v8.12.0-rc2-ee
v8.12.0-rc3
v8.12.0-rc3-ee
v8.12.0-rc4
v8.12.0-rc4-ee
v8.12.0-rc5
v8.12.0-rc5-ee
v8.12.0-rc6
v8.12.0-rc6-ee
v8.12.0-rc7
v8.12.0-rc7-ee
v8.12.0.pre
v8.12.1
v8.12.1-ee
v8.12.2
v8.12.2-ee
v8.12.3-ee
v8.13.0.pre
v8.14.0.pre
v8.15.0.pre
v8.16.0.pre
v8.17.0.pre
v8.18.0.pre
v8.2.0-ee
v8.2.0.rc1
v8.2.0.rc1-ee
v8.2.0.rc2
v8.2.0.rc2-ee
v8.4.0.rc1
v8.8.0
v8.8.0-ee
v8.8.0-rc1
v8.8.0-rc1-ee
v8.8.0-rc2
v8.8.0-rc2-ee
v8.8.1-ee
v9.*
v9.1.0.pre
v9.2.0.pre
v9.3.0.pre
v9.5.0.pre
v9.6.0.pre