Low severity3.5OSV Advisory· Published Jan 17, 2023· Updated Jun 17, 2026
CVE-2022-4891
CVE-2022-4891
Description
A vulnerability has been found in Sisimai up to 4.25.14p11 and classified as problematic. This vulnerability affects the function to_plain of the file lib/sisimai/string.rb. The manipulation leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. Upgrading to version 4.25.14p12 is able to address this issue. The name of the patch is 51fe2e6521c9c02b421b383943dc9e4bbbe65d4e. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218452.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
sisimaiRubyGems | < 4.25.14p12 | 4.25.14p12 |
Affected products
13- Range: v4.14.2, v4.15.0, v4.16.0, …
cpe:2.3:a:libsisimai:sisimai:*:*:*:*:*:*:*:*+ 10 more
- cpe:2.3:a:libsisimai:sisimai:*:*:*:*:*:*:*:*range: <4.25.14
- cpe:2.3:a:libsisimai:sisimai:4.25.14:-:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p10:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p11:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p1:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p3:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p5:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p6:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p7:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p8:*:*:*:*:*:*
- cpe:2.3:a:libsisimai:sisimai:4.25.14:p9:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
9- github.com/sisimai/rb-sisimai/commit/51fe2e6521c9c02b421b383943dc9e4bbbe65d4envdPatchThird Party AdvisoryWEB
- gist.githubusercontent.com/gmcabrita/e5dc0332473fc2e3a7a407434c8d21c7/raw/00b12035e5e1b685469f143b94301a50306376ba/example.htmlnvdExploitThird Party AdvisoryWEB
- github.com/sisimai/rb-sisimai/pull/244nvdExploitPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-vm74-j4wq-82xjghsaADVISORY
- github.com/sisimai/rb-sisimai/releases/tag/v4.25.14p12nvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2022-4891ghsaADVISORY
- vuldb.comnvdPermissions RequiredThird Party AdvisoryWEB
- vuldb.comnvdPermissions RequiredThird Party AdvisoryWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/sisimai/CVE-2022-4891.ymlghsaWEB
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